I’ve been working on this for awhile and I’m out of ideas. I’m running Pro 2.5.5 with a Child theme, and I haven’t been able to update Modern Events Calendar past version 3.5.2. Any updates more recent than that cause my site to hang. Luckily, I have a staging site, so this has not affected my production site.
I have tried many, many troubleshooting steps, including deactivating all other plugins and switching to Twenty Nineteen theme, with the same results. I would appreciate any other ideas you may have to help me track this down. If I can’t fix it, I will eventually have to find a new calendar plugin to replace MEC, but if I can possibly find the problem, I would much rather fix what I have. Thank you!

