@ Kate
Well, this took the better part of my day to track down. I narrowed the cause to Quform. That plugin unregisters a core WordPress javascript file (which is bad practice as it break other plugins) in which Connections Form requires. I had added a check in the core Connections plugin that checked if it was still registered or not and if it was not it would register it again. That was enough to correct the issue for you last time.
I suspect they made a change between last time and now which caused that fix to no longer work. I added an additional check to Form which should hopefully prevent this from happening again.
Another workaround that would have worked… on the QuForm admin settings page under the Performance tab if the “Combine JavaScript” option was disabled that would corrected it too. The reason is that Form would happily use the Quform version of the script that it loads. I suspect changing the “When to load…” option to “Auto” would have also corrected the issue but I did not test that.
Apologies for the trouble! If this does happen again in the future at least we know the first place to look now.
