REGRESSION RANGE
WORKING: 9404494 (right before Dev-Core copy up at 9405827
BROKEN: 9407021 (Dev-Networking copy up)
NavigateToFunctionSource: Unable to find symbols for 'UPaperFlipbook::GetNumFrames' [The specified module could not be found.]
Then subsequently:
NavigateToFunctionSource: Unable to find symbols for 'UPaperFlipbook::GetNumFrames'
[Element not found.]
1. Open QAGame
2. Open any blueprint
3. In the context menu of the graph editor find a function named GetNumFrames (disable context sensitivity) and add it to the graph
4. Double click on the new node to try and jump to the source code
5. Wait for symbol indexing to complete
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-87909 in the post.