
Hi @4004,
Unfortunately, I have failed to reproduce this issue on Windows 10 21H2 and 22H2, and all the tabs within tab groups are restored as expected.
Here're some suggestions for troubleshooting:
- Try turning off installed extensions.
- Try resetting Microsoft Edge. Settings --> Reset settings --> Restore settings to their default values.
- Try repairing or re-installing Microsoft Edge.
Also, there're some useful workarounds for you to restore closed tab groups without losing them:
- Instead of selecting "Restore" after a crash, restore them from History --> Recently closed. This equals to the "Restore" option in the prompt.
- Enable the flag Tab Close Controller at edge://flags. This flag helps you restore closed tab groups from History --> Recently closed. If the lost tab groups in your case are "closed" by Edge itself, you may get them back in this way.
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Best Regards,
Shijie Li