Troubleshooting

• Is learning enabled for the page?
• Is the page due today?
• Was a review-phase page already graded today, or is a learning-phase page waiting for its next step?
• Are you in a scoped review session?
• Are you looking at a parent page instead of a child page?
• Are you offline?
• Are you expecting questions or AI to control scheduling?
• Are you confusing export with backup?

Why isn’t my page due? — full guide.

Why can’t I grade again? — full guide.

Why did my review date change? — full guide.

Why is offline mode read-only? — full guide.

Other common issues — full guide.

• Learning is not enabled.
• The page is not due yet.
• A review-phase page was already graded today, or a learning-phase page is not due for its next step yet.
• The page is outside the selected review scope.
• The page has different stability, difficulty, or retrievability than expected.
• Recent grades changed the next due date.

Why isn’t my page due?, Why can’t I grade again?, Why did my review date change?, How reviews work, and FSRS-light explained.

• Parent pages and child pages are separate pages.
• Learning state is per page.
• Review history is per page.
• A parent can be due while a child is not, and the reverse can also happen.
• Adding questions does not automatically enable learning.

Nested Pages, Learning Pages, and Questions.

• AI-generated questions are drafts.
• Generated study pages are also drafts until you save them.
• Saving generated pages does not enable learning.
• Edit, delete, or rewrite weak generated questions.
• Questions are optional prompts.
• Questions do not make a page due by themselves.
• AI does not check or grade answers.

AI in Yuhimo, Edit generated questions, What AI does not do, Questions, and Self-Assessment.

• Offline mode is read-only for cached content.
• Cached content is not a backup.
• Backup restore adds copies instead of overwriting the workspace.
• Export is for portability, not the same as backup.
• Other tools may not understand Yuhimo-specific learning state.

Why is offline mode read-only?, Offline mode, Backups and restore, Import / Export, Vendor lock-in, and Where your data is stored.

• You cannot grade the same page twice today.
• A page without learning enabled will not appear in review.
• A page with questions is not automatically a learning page.
• A page reviewed with Easy may move farther away.
• A page reviewed early may gain less scheduling progress.
• Offline pages may be readable but not editable.
• Restored backups may create duplicates.

Some issues may need support if behavior contradicts the docs.

• A due learning page is not shown even when it is in scope, eligible for its phase, and not blocked by today's review-grade or a pending learning step.
• A page disappears unexpectedly.
• Restore creates content that cannot be opened.
• Export fails completely.
• Review dates look inconsistent after refresh.
• Cached offline content appears corrupted.

• Confirm the exact page.
• Check whether learning is enabled.
• Check the due date.
• Check whether a review-phase page was already graded today, or whether a learning-phase page is waiting for its next step.
• Check whether a scoped session is active.
• Check whether the issue is about a parent or child page.
• Check whether you are online.
• Refresh or reopen the app if content looks outdated.
• Note what action caused the issue.

Contact Support.

If you are troubleshooting a specific issue, start with the most relevant article:

1. Why isn’t my page due?

2. Why can’t I grade again?

3. Why did my review date change?

4. Why is offline mode read-only?

5. Other common issues

Learning & Scheduling — Scheduling, due dates, review grades, and FSRS-light.

Core Concepts — Pages, learning pages, nested pages, questions, and self-assessment.

AI in Yuhimo — Study material generation, question generation, and AI limits.

Data & Sync — Offline mode, backups, exports, and portability.