Acrobat Reader DC IE (10:10) error w\o Protected mode

[default4g2gcp76gac2]

2012r2 RDS /Vmware/Citrix environment <10000 sessions we are getting the same issue reported by others when opening a PDF link in IE11: 

"There is a problem with Adobe Acrobat/Reader. If it is running, please exit and try again. (10:10):

This error is toggled by the protected mode setting, where Protected Mode disabled causes the issue. Unfortunatly, we have applications that require adobe not to be protected mode.

1) ETA on a permanent fix?

2) can i get the rumor'd fixed dlls to test?

thanks

[default4g2gcp76gac2]

for clarification 
Adobe DC  21.005.20048

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Adobe\Acrobat Reader\DC\FeatureLockDown

bProtectedMode=0  errors

bProtectedMode=1  does not error, but is known to cause issues with Epic

[MeenakshiNegi]

Hello,

Thank you for reaching out and sorry for the trouble.

I have shared the information with you on the email address that you used to sign in to this community.

Please check your inbox and share your response over the email so we can further investigate this issue.

Thanks,

Meenakshi

[MeenakshiNegi]

Hello,

We have released an optional update for Acrobat and Reader DC (version 21.005.20054) that addresses this issue.

Please update the application to the latest version from this link: https://www.adobe.com/devnet-docs/acrobatetk/tools/ReleaseNotesDC/continuous/dccontinuousjunehotfix2...

Let us know how it goes.

Regards,
Meenakshi