My background picture is not applied only when I play puzzle (training) mode

why is it?

To me my background picture is always displayed
Even when I play Puzzles

@SwastikNaskar01 My case for puzzle mode is just black background
maybe it can't display the picture from url because its size is too large?

@Jungbong Invalid image causes thst issue. Try getting the image onto wix or weebly and then copy image link. That seems to be the only way to do this (not even google sites and imgur work...)

Please examine this problem "support team"

меня забанили!?

Maybe it's a problem of "analysis"-like modes. I found analysis mode doesn't display the picture from an URL.