Upgrade to 2.13 appears to corrupt admin backend

System
php7
Joomla 3.8
iis
Non-current subscription

After installing the update to 2.13 today, my admin area whitescreened.
I went through all the normal backflips required to get it online, using a stock admin components folder and set about adding components back into it to see where it would tank. I was very surprised to see that when i added the CB folders back in, that is when it would fail. Errors reported only notices save for an error referencing the re-confirm email file.
Just to confirm that was the point of failure, i went ahead and reinstalled the 2.11 package, and the admin area again failed

It appeared fine using the previous version, though admittedly i hadnt completely recovered the site. I understand the support isnt extended beyond the subscription, but this appears to be something that you guys might want to be aware of.

**edit**
i can rem out the folder in administrator/modules/REM--CBadmin and the admin area functions once more

I should also add that this is on the joomla 3.8.1 rev

Don't see what this has to do with presales. Topic moved.

Upgraded from CB 2.11 or an earlier release? We've no known issues with Joomla 3.8 or 3.8.1. I see no issues in retesting install process on a clean install either. You likely have an out of date CB plugin installed probably causing issues is my best guess as our admin module loads plugins to allow for plugin menus to display.

Hi Kyle- yes that was an update from 2.11. Ill give that a shot from a clean install.