hello my dear fellow players. I'm still fairly new to this. I recently led a session as a dm and a problem arose. For 4 out of 5 players, moving their player avatrs on the above VTT map caused their current life to steadily increase. only one player hasn't changed. also the icons ONLY had a blue aura. but no green aura. Does anyone know how to fix the problem?

You will have to take that up with either AboveVTT, or the creator of the Beyond20 app as neither is affiliated with this website.