Videos encoded with the rare combination H.264/MP3 won't play audio.
VMware Horizon
On UD3 50/IZ3 50 accelerated H.264 decoding is only possible for blast sessions with screen heights up to 1152 pixels due to hardware limitations. If sessions exceed 1152 pixel height, the GL-Basic rendering engine is used instead.
The new on-insertion feature is only working if the client drive mapping is switched off. Client drive mapping can be disabled at TC Setup under Sessions -> RDP -> RDP Global -> Mapping -> Drive mapping.
Evidian
Active Directory users with a password containing special characters may have problems to authenticate with the configured session. Known special characters which results in errors are: ` (grave accent, ASCII code 96) ยด (acute accent, ASCII code 239)
Universal MultiDisplay
While updating the UMD slave devices from 5.10.100 or older firmwares there will be screen flickering and corruptions until the update is finished.
RDP/IGEL RDP Client 2
EVOR video redirection does not work reliably: Workaround the issue by disabling: Sessions -> RDP -> RDP Sessions -> [session name] -> Multimedia -> Enable Video Redirection or by disabling: Sessions -> RDP -> RDP Global -> Multimedia -> Enable Video Redirection.