VR Pawn editor window makes game play grab unusable

Hello, I am using the UE4.27 VR Template and I am facing a strange behaviour:
Opening the project, press play, everything works good, I am able to grab objects.
Next, opening the VR Pawn Window (no change to code), pressing play and grab is not working.
Usually if I close the VR Pawn editor window the grab works again but not today. Only a restart fix the issue but if I open the VR Pawn editor again, the grab stops functioning.
Any suggestions?
Thank you!
Adrian