It might happen if the Roblox game is still hooked by Bandicam.
Please end the Roblox game process completely and try deleting them again.
Also, we recommend you use the latest version of Bandicam.
Thanks to your guidance and the information you provided, I now have a better understanding of the potential causes of this problem. I have learned that certain factors, such as system requirements, graphics settings, and outdated drivers, can contribute to game crashes during recording sessions.