Stream read error

<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 5.13.2

Error message:
Stream read error

Stack trace:
(0036FBF7)

Status: unknown_rel_addr

The problem happens rarely. I cannot reproduce it.