Out of memory

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.19.6

Error message:
Out of memory

Трассировка стека:
(0043B95E)
(0043B95E)
(00419814)
(00419936)
(00419918)
(00C85FE6)
(00018FE5)
(00019264)
(0004CB4F)
(0004CB0C)
(003C7B64)
(000152F7)USER32.dll
(00015D35)USER32.dll
(000167BF)USER32.dll
(00016885)USER32.dll

Status: unknown_rel_addr

The problem happens rarely. I cannot reproduce it.