Adobe Reader DC v2018.011.20036 - Protected Mode - Crashes

Question; How do you properly configure Adobe Reader DC when protected mode is enabled?

I've been through the helpx.adobe site and forums. The main consensus online is to disabled this feature. However, our environment requires this feature to be enabled. None of the reasonably possible solutions work. Such as trusted folders/trusted sites or whitelist cfg. I need to a solution where protected mode is enabled and personnel are able to properly use Adobe Reader DC.

Currently when protected mode is enabled, it crashes when opening a pdf.

I've went through all the relevant registry and policy settings under

HKLM\SOFTWARE\WOW6432Node\Policies\Adobe\Acrobat Reader\DC\FeatureLockDown

HKLU\Software\Adobe\Acrobat Reader\DC\TrustManager

local and group computer/user policy settings

I've tried multiple configurations with protected mode enabled. As long as protected mode is enabled, Adobe Reader DC crashes. No matter what other settings are set.