Invalid access to memory

I deleted a file on an Linux server.


WinSCP 6.7

Error message:
Invalid access to memory.

Stack trace:
(000000000002DFDF)
(000000000013E0B7)
(000000000013EDBB)
(0000000000C6ED0A)
(00000000001654AF) ntdll.dll
(00000000000C3065) ntdll.dll
(0000000000164DEE) ntdll.dll
(000000000002DFDF)
(0000000000054B29)
(00000000004D96CB)
(00000000009A4B5D)
(00000000004D48A5)
(0000000000117AA5)
(0000000000393770)
(000000000039AC30)
(00000000003F8F77)
(0000000000393262)
(000000000039AE0E)
(000000000039C01B)
(0000000000117AA5)
(0000000000393770)
(000000000039AC30)
(0000000000399D4C)
(00000000001BDDF6)
(00000000000142E6) USER32.dll
(0000000000013B6C) USER32.dll
(000000000003E593) USER32.dll
(0000000000164D94) ntdll.dll
(0000000000000384) win32u.dll
(00000000000163C6) USER32.dll
(0000000000015974) USER32.dll
(000000000001575F) USER32.dll
(0000000000010C9A) COMCTL32.DLL
(00000000000420D0) COMCTL32.DLL
(000000000007045F) COMCTL32.DLL
(000000000006F10E) COMCTL32.DLL
(00000000000142E6) USER32.dll
(0000000000013DAC) USER32.dll
(000000000039ADA1)
(0000000000394034)
(00000000003FAB35)
(00000000004C88BA)
(00000000004D6AD5)
(0000000000117AA5)
(0000000000393770)
(000000000039AC30)
(00000000003F8F77)
(0000000000399D4C)
(00000000001BDDF6)
(00000000000142E6) USER32.dll
(0000000000013DAC) USER32.dll
(000000000002BED8) COMCTL32.DLL
(000000000002BBD4) COMCTL32.DLL
(000000000002BED8) COMCTL32.DLL
(000000000002BCAF) COMCTL32.DLL
(00000000000142E6) USER32.dll
(0000000000013DAC) USER32.dll
(00000000004FC139)
(00000000001BDDF6)
(00000000000142E6) USER32.dll
(0000000000014DBD) USER32.dll
(0000000000483FC3)
(0000000000484038)
(000000000048448F)
(00000000000F8F6B)
(00000000000FBC2B)
(0000000000C6A0D8)

Status: not_matched

The problem happens rarely. I cannot reproduce it.