My Thunderbird application is either deleting or hiding emails. So far, it appears to be emails I send and copy my self on. I included a BCC to my second email and still it disappeared. I initially receive the emails, but once I exit Thunderbird, then later launch Thunderbird again, initially the email is present, then it disappears. I have no idea what to do to correct this issue, if it is something I can correct. I am running Thunderbird version 115.18.0 (64-bit), on Linux Mint Cinnamon 21.3 I hope there is a fix for this. I do not like seeing my emails disappearing before my eyes. This is a weird issue. Thank you, Clarence Hayes