@mrsjinthelibrary, I was just getting ready to update and I noticed this. I wondered if you ever found out what the problem was?
I’m not sure, but when I deactivated the URE plugin, it worked. So there’s something going on that conflicts. Sorry, I should have been more clear that I did the whole “turn off each plugin, one by one” testing.
It doesn’t sound like the plugin authors are going to respond to this. I guess I’ll go ahead and update and hope for the best.
So update from today…I messed around some more with deactivating & re-activating plugins, and it was a combination of lack of hosting resources, and a conflict with another plugin (Kadence Blocks).
The wild thing is that the URE plugin was the “straw that broke the camel’s back” on my live site, but on my staging/development site, it was Kadence Blocks. Once I removed Kadence Blocks from both, then the URE plugin could be updated on both and the Customizer loads fine.
My apologies for thinking it was this plugin’s fault!
Well, I still think it’s good that you posted about it. Other’s might have the same problem and find this information useful. I’ve just updated, and everything went OK as far as I can see on our site.
