@James Hi James, I sent the problem Blender file. Thak you very much!

Hi James, I realize that the problem sometimes also happens when I delete some object in Blender and immediately after that I click CTRL + Z

Hi James. The problem only happens with two blend files. Yes, I can send the blend file :) However, I didn't find at at crowdrender dot com dot au, a way to send it. I can share on Google Drive for you, if this is allowed Thank YOU