hello @woodsborow sorry for the long delay answer. I translated your russian into english and found out we have the exact same issue. I'm happy someone also has it because it occurs in all my 3 RDPs and was feeling like no one would understand what happens. I hope @support finds a way to fix it somehow.
I didn't solve the issue because nothing seemed to work. But I just saw we can now have extension in BAS which I'll be using to stop loading pictures directly
Try with "string" setting instead of "expression".
Or adjust to "expression" type setting, like you need
to use + sign and quotes for strings inside expression.