Topic: Ocassional UNWANTED conversion of a paste into an attachment

Telegram Desktop usually does not, and all is well, but at times, it stubbornly refuses to follow its usual excellent routine, and instead turns an image pasting from the Windows Clipboard into an attachment instead. What can be going wrong ? I'm using x32Win10ProV20H2. I have tried often and in different ways to consult the publishers, the Helpdesk and its forum without getting a response.