I’m having the same issue.
Have you had any success with getting it to work yet?
I’ll post back if I find anything out in the meantime.
I have one custom object that shows up but not the other custom objects. Can’t see any difference in the one that shows up and the ones that don’t.
Version 2.2.4.4 of this plugin, latest version of everything else.
Do certain fields/settings change which objects one can use?
I’m having the same issue. I’m just going to systematically go through a list of all my objects and look for any common denominator in the ones that don’t show.
Let me know if you get there first. I’ll post back if I find anything.