Duplicate of UE-29545
This bug has different behavior throughout the 4 different versions listed.
4.8.3 - Gives an assert
4.9.2 & 4.10 - Gives a fatal error crash
4.11 (Main) - Freezes the editor without a crash report
When the Execute Console Command node is used to run the demoplay console command, the editor will crash or freeze depending on the version you're in.
Note: Using demorec prior to this does not prevent the issue
1. Create a new project
2. Open the level blueprint
3. Add a keybinding node (Such as a input event for K) and connect an Execute Console Command node to the Pressed execute pin
4. In the Console Command field, enter the following:
5. Press play to enter PIE and hit K (or your keybinding you set up in step 3)
Result: Editor crashes or freezes
Expected: The demo should play if it's recorded, or an error should appear in the log if none has been recorded.
4.9.2 & 4.10 callstack:
Head over to the existingAnswerHub thread and let us know what's up.