My HUD was working fine on both ACR and BOL (playing tables on both clients at the same time) until it randomly stopped working on ACR last week.
I fiddled around with the site specific settings by directing the ACR portion deeper into the profile area. Stopped and starting the HUD, then the HUD appeared on ACR but simultaneously vanished from BOL. Even after closing out of ACR, BOL won’t open HUDs again.