Invalid access to memory

Reconnecting session after staying idle / hibernated for the night
It happens right when pressing [Reconnect]

WinSCP 5.9

Error message:
Invalid access to memory.

Stack trace:
(006296E6)
(0086216E)
(008641D6)
(00860F90)
(0008A61F) ntdll.dll
(00077E7A) ntdll.dll.KiUserExceptionDispatcher
(006F5B84)
(006F544A)
(0073352B)
(0076DE53)
(006C57B9)
(006C0780)
(0009836F)
(000128F2) KERNEL32.DLL.BaseThreadInitThunk
(00064DE1) ntdll.dll
(00064DA9) ntdll.dll

(008627D9)
(00863DB3)
(006F5C83)
(006F544A)
(0073352B)
(0076DE53)
(006C57B9)
(006C0780)
(0009836F)
(000128F2) KERNEL32.DLL.BaseThreadInitThunk
(00064DE1) ntdll.dll
(00064DA9) ntdll.dll

(008627D9)
(00863DB3)
(006F5D1E)
(006F544A)
(0073352B)
(0076DE53)
(006C57B9)
(006C0780)
(0009836F)
(000128F2) KERNEL32.DLL.BaseThreadInitThunk
(00064DE1) ntdll.dll
(00064DA9) ntdll.dll

(008627D9)
(00863DB3)
(006F5538)
(0073352B)
(0076DE53)
(006C57B9)
(006C0780)
(0009836F)
(000128F2) KERNEL32.DLL.BaseThreadInitThunk
(00064DE1) ntdll.dll
(00064DA9) ntdll.dll

(008627D9)
(00863DB3)
(0076CB45)
(0076DE53)
(006C57B9)
(006C0780)
(0009836F)
(000128F2) KERNEL32.DLL.BaseThreadInitThunk
(00064DE1) ntdll.dll
(00064DA9) ntdll.dll

Status: unknown_rel_addr

The problem happens rarely. I cannot reproduce it.