partial load (section refresh) stuck in editor when using Litespeed

Hi Guys,
I tried the BB plugin on a local machine and worked as expected. However, as soon as I use it on a live host the editors partial refresh on section edits stay grayed out after modal save.

Take a textbox for example. Change the text or add a link in the editor modal and press Save, modal goes away, but page editor section stays grayed. That makes that you can’t select that section again for another edit. Once you use browser refresh, the grays will go away and BB editor screen is back to normal in that you can hover all sections again to edit.

I tried the BB clear cache, but that is the same as a normal browser refresh as in it’s only good for one edit modal and then every edit grays again. While making the edits in the modal, the BB page in the background would actual show the changes as you type.

I then went a did a fresh vanilla WP install straight onto the live host. zero other plugins and themes. Problem still there. Then added the WP litespeed cache plugin, which them allows me to exclude some files and urls from the litespeed server cache. I can see some of the exclusion not being cached, but whatever I do can’t get it to exclude fl-builder.js from caching.

The only headway I’m making is that there is a css class that gets stuck on containers (.fl-builder-node-loading) which doesn’t get removed. If i remove it in FF inspector, the edit screen goes back to normal. So I’m thinking that there is something causing the js not to remove the class after the modal Save button. ‘wp-admin/admin-ajax.php’ is already showing as not being cache after some settings.

I’ve also asked the host to check mod-sec logs. nothing there. Also added define( 'FL_BUILDER_MODSEC_FIX', true );
but that didn’t have an effect.

SSL and non-SSL same effect.

Is there some thing else we can try? Great plugin, but can’t expect a page refresh to see edits after each modal…