Sent Email dont copy in Folder Sent after Avast Update in Thunderbord

After Avast Update to 11.1.2241 thunderbird cant copy emails anymore to sent folder, not gmail, not netcup no provider.

SSL Scanning is on. sent email check is off. it dit thid:

https://www.avast.com/faq.php?article=AVKB91#idt_0201

but it doesnt help. any solution? i need to see my sent mails!