Bug still present in version 2.52.1023 (beta).
P.S.:
Build 1022Pro installed in folder BSplayer2Pro => crash Build 1023Pro installed in folder BSplayerProBeta => crash Some older version 2 builds I happen to still have installed: Build 959Pro installed in folder BSPlayerPro227 => working Build 986Pro installed in folder BSPlayerPro => working (I don't know with which build the sub-editor's bug started)