Symptoms
New tasks show in a browser but the installed app keeps an old list.
Use the following observations to establish that this is the specific failure described here, rather than an unrelated outage or different account:
- Failing behavior: New tasks show in a browser but the installed app keeps an old list.
- Comparison to run: Create a harmless test task on the web and compare the signed-in account identity.
- Pass condition: Test task appears and changes on both surfaces without duplicates.
Why It Happens
Account permissions and synchronization queues need independent checks: the server copy can be correct while a particular desktop or mobile profile is stale.
Treat these as competing hypotheses, not confirmed diagnoses. Their implications are different:
- App signed into different Microsoft account — investigate this first only if the local state or controlled comparison supports it.
- Local sync queue stalled — a second layer that may survive a simple restart and requires a targeted check.
- Shared-list invitation not accepted for this identity — investigate when the first two paths do not account for the observed behavior.
Before Making Changes
Export or capture unsynced tasks before sign-out or app reset. Several accounts or profiles can display the same name while storing separate content and permissions. Identify the exact signed-in identity and the owning account before changing a shared resource. Write down the working configuration and, if available, export settings or create a test-only copy before changing account permissions, routes or file locations.
Make one change at a time, note the original value, and repeat the exact same test after each change. If the new outcome is worse, restore that single setting; a full reset would erase evidence and can create additional problems.
Problem-Specific Diagnosis
Begin with this controlled observation: Create a harmless test task on the web and compare the signed-in account identity. Record the result and time; a vague report such as “sometimes fails” cannot distinguish the three hypotheses.
| Check | What to do | What the result tells you |
|---|---|---|
| Compare a working path | Create a harmless test task on the web and compare the signed-in account identity. | If one controlled route works, the failed route is probably specific to a setting, permission, device, or service rather than a total outage. |
| Check the local state | Confirm the exact email address in app and website. | This can expose or rule out app signed into different microsoft account without changing several settings together. |
| Inspect the deeper layer | Inspect app account token status and organizational sync policy. | Use the evidence to separate local sync queue stalled from shared-list invitation not accepted for this identity; do not assume either is proven. |
If the local comparison is inconclusive, keep the current system unchanged while checking whether local sync queue stalled is consistent with the evidence. If not, investigate shared-list invitation not accepted for this identity rather than applying every possible fix.
Use Beginner for reversible checks; use Advanced only when the comparison indicates a deeper fault. New tasks show in a browser but the installed app keeps an old list. Run a harmless test and write down the time, device/account, current status indicators and the exact difference from normal behavior. Create a harmless test task on the web and compare the signed-in account identity. Do not erase logs or reset the device yet. Confirm the exact email address in app and website. Confirm the relevant account, cable, selected output, permission or status before saving changes. If it is already correct, leave it alone and proceed; do not force a change just to try something. Close and reopen the app while online and check the specific list filter. Change only this one condition after recording the old value. If it does not improve the result, restore the former value rather than layering additional guesses on top. Test task appears and changes on both surfaces without duplicates. Repeat the same comparison used in step one. Record what improved, what remains unchanged and whether a reconnect or normal app restart changes the result. Stop here if the expected outcome is stable. Consider app signed into different microsoft account, local sync queue stalled and shared-list invitation not accepted for this identity separately. Compare evidence from the working and failing paths, and avoid interpreting a green status indicator as end-to-end proof. Create a harmless test task on the web and compare the signed-in account identity. Inspect app account token status and organizational sync policy. Focus on logs, state, permissions, protocol negotiation or version support relevant to this failure. Do not collect or share credentials, account tokens or unrelated private content. Test a different app profile before clearing local application state. Use an isolated or test-only configuration where possible. Keep an explicit rollback path; do not weaken security, replace backup originals or bypass equipment protection to make one test pass. Test task appears and changes on both surfaces without duplicates. Observe the behavior through the original trigger again. If the change does not produce this measurable result, undo that change and escalate with the recorded facts, rather than repeating disruptive reset attempts.Step-by-Step Troubleshooting
Capture the failing state
Check the first reversible condition
Apply the lowest-risk targeted fix
Retest and document
Distinguish the competing root causes
Inspect the deeper system layer
Run a second independent isolation test
Validate stability and rollback readiness
Solution Checklist
Common Mistakes to Avoid
- Treating app signed into different microsoft account as certain before running the comparison: Create a harmless test task on the web and compare the signed-in account identity.
- Trying several changes at once, such as modifying local sync queue stalled and shared-list invitation not accepted for this identity simultaneously, which makes the successful change impossible to identify.
- Ignoring the safety boundary: Export or capture unsynced tasks before sign-out or app reset.
- Assuming that a status label or progress indicator guarantees the actual action completed; verify the outcome independently.
How to Verify the Fix
Test task appears and changes on both surfaces without duplicates.
- Repeat the original failing action under equivalent conditions: New tasks show in a browser but the installed app keeps an old list.
- Run the control again: Create a harmless test task on the web and compare the signed-in account identity.
- Check the positive pass condition: Test task appears and changes on both surfaces without duplicates.
- Recheck after a normal restart, reconnection or scheduled cycle only when it is safe and relevant.
A single passing attempt is useful but may conceal intermittent failures. Record whether the fix survives the triggering condition without requiring a daily workaround.
If the Problem Continues
Use the deeper comparison rather than repeating the first steps: Inspect app account token status and organizational sync policy. Test a different app profile before clearing local application state.
Tell the service owner the affected account alias, item type, client type and timestamps, but never send passwords, recovery codes, full tokens or private shared documents.
If the issue affects money, alarms, shared business records, or protective power equipment, stop risky experiments and use the official administrator, provider or manufacturer channel.
Prevent Recurrence
- Keep a record of the previously failing condition: Create a harmless test task on the web and compare the signed-in account identity.
- Preserve the corrected behavior: Test task appears and changes on both surfaces without duplicates.
- Keep a current backup or export of irreplaceable local records and review sharing permissions when changing devices or accounts.
- Review configuration or hardware changes that could reintroduce app signed into different microsoft account.
Frequently Asked Questions
Does this symptom prove app signed into different microsoft account?
No. Start with the controlled comparison: Create a harmless test task on the web and compare the signed-in account identity. Only treat app signed into different microsoft account as a candidate until the evidence supports it.
What if the first two checks do not change anything?
Move to a different layer rather than repeating the same action: Inspect app account token status and organizational sync policy. That helps determine whether local sync queue stalled or shared-list invitation not accepted for this identity fits the symptoms.
How do I know the repair actually worked?
Use this outcome, not just an on-screen status message: Test task appears and changes on both surfaces without duplicates. Keep a record of the working state for future troubleshooting.