Welcome the Technical Support section. Help us in assisting you by providing us with a concise and descriptive elaboration of your issues. Be specific and if possible, provide us with a step-by-step instruction in replicating your problem.
We've experienced this anomaly a few times now. We're uncertain what exactly is triggering it, but I figure would start with JomSocial since this was an issue in the passed that may have resurfaced.
I have several different user groups for both Joomla and Jomsocial. This bug (randomly unchecking / unassigning users) seems to randomly be effecting ALL Joomla user groups, including the Super User on a couple of occasions. Your help wuld be appreciated!
Okay, I've updated from 4.1 to 4.1.4. Please check and verify that this problem is fixed because we're been on JomSocial 4 for a while now and the problem has been there despite having been patch for 3.2.