Trying to drag files/ a directory to another directory.

WinSCP 6.7

Error message:
Invalid access to memory.

Stack trace:
(000000000002DFDF)
(0000000000585259)
(000000000013E0B7)
(000000000013EDBB)
(0000000000C6ED0A)
(00000000002EEEFC) ntdll.dll
(00000000002E5748) ntdll.dll
(00000000001D6D00) ntdll.dll
(00000000002E5520) ntdll.dll
(000000000002DFDF)
(0000000000054B29)
(00000000004D96CB)
(00000000009A4B5D)
(00000000004D48A5)
(0000000000117AA5)
(0000000000393770)
(000000000039AC30)
(00000000003F8F77)
(0000000000393262)
(000000000039AE0E)
(000000000039C01B)
(0000000000117AA5)
(0000000000393770)
(000000000039AC30)
(0000000000399D4C)
(00000000001BDDF6)
(0000000000163A3C) USER32.dll
(00000000000B3954) USER32.dll
(00000000000C8810) USER32.dll
(00000000000CC944) USER32.dll
(00000000002E53FC) ntdll.dll
(000000000000E1A4) win32u.dll
(00000000000B2F60) USER32.dll
(00000000000B257C) USER32.dll
(0000000000154528) USER32.dll
(00000000001BA798) COMCTL32.DLL
(0000000000377C74) COMCTL32.DLL
(00000000001D6A88) COMCTL32.DLL
(00000000001D99A8) COMCTL32.DLL
(00000000000B3954) USER32.dll
(00000000000B19EC) USER32.dll
(0000000000163440) USER32.dll
(000000000039ADA1)
(0000000000394034)
(00000000003FAB35)
(00000000004C88BA)
(00000000004D6AD5)
(0000000000117AA5)
(0000000000393770)
(000000000039AC30)
(00000000003F8F77)
(0000000000399D4C)
(00000000001BDDF6)
(0000000000163A3C) USER32.dll
(00000000000B3954) USER32.dll
(00000000000B19EC) USER32.dll
(00000000001B9584) COMCTL32.DLL
(00000000001DB074) COMCTL32.DLL
(00000000001B9584) COMCTL32.DLL
(00000000001B9A54) COMCTL32.DLL
(00000000000B3954) USER32.dll
(00000000000B19EC) USER32.dll
(0000000000163440) USER32.dll
(00000000004FC139)
(00000000001BDDF6)
(0000000000163A3C) USER32.dll
(00000000000B3954) USER32.dll
(00000000000B12C4) USER32.dll
(00000000001633EC) USER32.dll
(0000000000483FC3)
(0000000000484038)
(000000000048448F)
(00000000000F8F6B)
(00000000000FBC2B)
(0000000000C6A0D8)

Status: not_matched

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.