(09 Dec 2022, 18:02 )madjack Wrote: and a message that flashed up then disappeared, saying something about 'maximum processing exceeded'???
Most likely it's related. This is the CPU load before and after the tweak:

By default (this is how MyBB is designed) every thumbnail or full image load takes one PHP process. Our forum is very image intensive - one page full of thumbnails can heavy load the server. What I did is "disclosing" or "unhiding" thumbnails - they are seen as images now, not as "attachment.php?thumbnail=12345"
This is when I did that trick before: https://www.likera.com/forum/mybb/Thread...5#pid53015