and I routinely get key errors

did you try reporting them? they are watching for reports, and they are making automated tests for all cases they receive. you should probably both open an issue in the client repo, and then use the “report a problem” button in the client and paste the github issue link. before you send the report open the chat with the decryption error, or try to reproduce it with a new message if you can, so that they can get better logs. probably also toggle on the “contact me”.

if you get a new message that can’t be decrypted, send a report from the client soon. don’t need to open a different issue if you don’t want.