That worked for me at least.
Just for reference, I’m in a BP based project (not a single one C++ own class), and the Editor sometimes crashed giving this error when attaching a particular BP of mine to the PlayerStart instance. In other cases, it crashed afterwards when moving around the PlayerStart with the BP as a child, and then press Ctrl+Z.
Besides, I’m using Paper2D and PaperZD for the attached BP.