No users or media displayed in CMS

[BenWood]

CMS 3.3.6 upgrade to 4.1.1 - Campaign (etc) sections empty (but the campaigns do exist)

Okay, for any poor soul wandering in to this dark corner of the community forums, the answer is this: In IIS, select your virtual site and click on “Request Filtering”. Next, Choose “Edit Feature Settings” from the list on the very right hand side. Increase the “Maximum Query String (Bytes)” variable from 2048 to 8192. Go make yourself a cup of tea.

This was the resolution for me, credit to mattgrimley for that:

1. In IIS, select your virtual site and click on “Request Filtering”. Next, Choose “Edit Feature Settings” from the list on the very right hand side.

2. Increase the “Maximum Query String (Bytes)” variable from 2048 to 8192.