[Plugin: WP jQuery Lightbox] Read more link wants to open an image

Your domain is https://tutorial.gifwelft.info/blahdi-bladhi

The regexp trips up on that and some combination of characters in your more-links.

Ergo: the problem is not with WPMU.

I’ll see if I can fix the regexp for next release.

Appart from that you can fix something for the next release, I did not understand a lot. Nevertheless, thank you. ??

The new release is out now and should fix this issue.

That was a very fix fix ;)))) Thank you so much. You’re fast.