Check the size of attachments you're adding. If it's  more than your allotment the system gets confused.

All we can do is reset your space again, which I've done now.

this happened to me to recently. had room to add photo but took several tries to get it to do that. even deleted one i had in post so it was empty. finally got photo in there. Odd.

DelphiBasic members have very little attachment space, only 512K.

If it's images you want to add, use the Insert Image on the editor toolbar instead. That adds the image directly into messages which looks much better and there is no limit like using Attachments.

https://www.delphiforums.com/howto/insertImage.htm

thanks, may try that.