After deleting one mail, TB must be restarted as the inbox is empty

[Wolfgang2405]

This problem already existed in 2024, then gone - now back since May 2025.

When deleting mail(s), the inbox get's empty (as well as sent box) and Thunderbird must be restarted. After restart all is fine again.

[wsm]

@Wolfgang2405  if you are still having a problem, please post at https://support.mozilla.org/en-US/questions/new/thunderbird where they will get quicker attention, because "discussion" here is really just for discussion, not problem determination or support questions.  Thanks.