Put my laptop into hibernation mode and upon re-awakening I was represented with the error.

WinSCP 5.13.3

Error message:
Invalid access to memory.

Stack trace:
(00721640) std::_Tree<std::_Tset_traits<unsigned int, std::less<unsigned int>, std::allocator<unsigned int>, 0> >::const_iterator::_Inc
(008BCA5A) C5104_0
(008BEAC2) ____ExceptionHandler
(008BB87C) __ExceptionHandler
(0007DA8F) ntdll.dll
(0006B6B1) ntdll.dll.KiUserExceptionDispatcher
(00721084) std::_Tree<std::_Tset_traits<unsigned int, std::less<unsigned int>, std::allocator<unsigned int>, 0> >::erase
(00720890) std::_Tree<std::_Tset_traits<unsigned int, std::less<unsigned int>, std::allocator<unsigned int>, 0> >::erase
(007372A3) TSecureShell::UpdatePortFwdSocket
(006EA796) _do_select
(0067197F) _sk_newlistener
(0063C0D1) _pfd_close
(0064A89E) _ssh_sharing_logf
(00642A37) C2484_0
(00642C1A) _ssh_connshare_log
(006719E5) _sk_newlistener
(00634B61) _run_toplevel_callbacks
(00738D11) TSecureShell::Idle
(007B3F7F) TTerminal::Idle
(000990CC) TTerminalManager::Idle
(000175BF) TCustomScpExplorerForm::Idle
(0003EDF7) TNonVisualDataModule::DoIdle
(0003EDB4) TNonVisualDataModule::SessionIdleTimerTimer
(00380370) System::Classes::_18201
(0003AE69) USER32.dll
(00037335) USER32.dll
(00036BE9) USER32.dll
(000369CB) USER32.dll.DispatchMessageW

(008BD0C5) C5104_0
(008BE69F) _ReThrowException
(00099111) TTerminalManager::Idle
(000175BF) TCustomScpExplorerForm::Idle
(0003EDF7) TNonVisualDataModule::DoIdle
(0003EDB4) TNonVisualDataModule::SessionIdleTimerTimer
(00380370) System::Classes::_18201
(0003AE69) USER32.dll
(00037335) USER32.dll
(00036BE9) USER32.dll
(000369CB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.