Hi,

Update: 

We found that it is mediaflow's image plugin/add-on for CMS 11 that clashes with Episerver.UI.Core 11.37.0 and causes this.

https://world.optimizely.com/documentation/Release-Notes/ReleaseNote/?releaseNoteId=CMS-27106

https://support.mediaflow.com/hur-installerar-jag-mediaflows-episerver-plugin

I have created a vanilla CMS 11 project and can reproduce the problem there with a model containing a property of type ContentReference decorated with UIHint.Image, in combination with the Mediaflow image plugin package for CMS 11 that is available on the link above.

I have contacted Mediaflow Support and made them aware.

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After updating an Episerver CMS project from 11.20.x to the latest CMS 11 minor version (11.37.1), all pages and blocks where the content type has a property (ContentReference) that is decorated with the UiHint.Image attribute no longer loads in All Properties view. 

I'm getting this error in the epi.js:

After setting  <clientResources debug="true" /> in the <episerver.framework> section in web.config (and closing the Versions gadget that gives a lot of noise in the debugger), I get this:

On-page edit kind of works, the content and the UI fields are displayed and I can drag an image into properties decorated with UiHint.Image in on-page edit mode, however when clicking in the field for the image I get this error:

lang.hitch: scope["_onButtonClick"] is null (scope="[Widget uniqName_178, uniqName_178_0]")

and I don't get any interaction, should there be a dialogue appearing there?

The updates to packages (done using nuget update):

The project is also using Geta.404Handler, and the update was applied there as well:

Has anyone else had this problem?

Best regards,
Linda