Adobe AcroCEF has stopped working after auto update from 32bit to 64bit Acrobat Reader DC

Acrobat DC has recently automatically updated itself from 32bit to 64bit, now when we open DC on the Terminal Server we get the error Adobe AcroCEF has stopped working and the following error in the eventlog. This happens on all terminal servers with the latest 64bit Adobe DC installed.

Faulting application name: AcroCEF.exe, version: 21.7.20091.59174, time stamp: 0x61397db1
Faulting module name: ntdll.dll, version: 10.0.14393.4530, time stamp: 0x60e33cac
Exception code: 0xc0000005
Fault offset: 0x0000000000007585
Faulting process id: 0x1d78
Faulting application start time: 0x01d7b43928bf1ea9
Faulting application path: C:\Program Files\Adobe\Acrobat DC\Acrobat\acrocef_1\AcroCEF.exe
Faulting module path: C:\windows\SYSTEM32\ntdll.dll
Report Id: f41d66b9-9509-4f4f-9124-5c70f9c3d72e
Faulting package full name:
Faulting package-relative application ID:

We also get an error 'Adobe Acrobat Reader cannot open inside an AppContainer in Protected Mode due to an incompatibility with your system configuration. Would you like to proceed?'

a) Open Reader with the AppContainer disabled inside Protected Mode

b) Do not open Reader due to the AppContainer system incompatibility

I have tried both options here after reinstalling and AcroCEF still crashes. I have had to completely remove 64bit version from all terminal servers and disable Automatic updates via the registry as there is no option to disable in the program. I would like to keep Adobe up to date but not if it's going to break my Citrix application servers. Please advise. Thanks