PIE with split screen prevents some drop down menus from working in Sequencer

1. Create a level sequence, add an audio track and an event trigger track to the sequence
2. Add a keyframe to the event track and create a new endpoint for the key
3. Add an audio section to the audio track
4. In the level blueprint call "Create Local Player" on event being play with a Controller Id of 1
5. PIE
6. Right click on the event keyframe > Properties and click on the Endpoint drop down menu
7. Right click on the audio section > Properties and click on the sound drop down

RESULT

Both menus will close instead of opening the sub menu

see description