It's not possible to configure a BB key selector to accept multiple different types of UObjects.
The issue comes from using strings to identify declared key type filters, which doesn't work well for objects. This seems to be an editor-only issue, it's the details customization that uses the string identifier for filters.
Temporary solution has been submitted in CL#2993995
Ask Mieszko Zielinski
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-31435 in the post.
| 0 |
| Fix Commit | 3191882 |
|---|---|
| Main Commit | 3229477 |
| Created | May 30, 2016 |
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| Resolved | Nov 9, 2016 |
| Updated | Apr 27, 2018 |