Glad it worked for you, but it didn't for me & I have the same versions as you. Even performed forum maintenance afterwards. This sucks.

Just an update...

The problem I'm having (wrapped forum w/ topics that won't show) has expanded to affect non-staff members of my site now. And it's not just topics that won't show... the whole forum disappears when trying to open certain topics. I can't downgrade php versions without switching to a new server & being that I just went through 3 days of hell with the last switch a week or two ago, I'm in no hurry to do it again so soon.

I'll pay for a fix if anyone has one!

Same problem here & it also happened immediately after switching to a new host.

I've even tried just removing myself from the admin group, hoping that would be a quick fix, but it's still an issue. Luckily, my members aren't affected & only 1 other admin has reported issues with 1 topic, so that's a relief. Still, this makes me crazy.

I'm going to try the smf.class.php fix listed above later today & will edit this post with my results. Wish me luck...