Assert error message and crash on uploading files

[php4fan]

I uploaded a bunch of files by dragging them from a Nemo window into Filezilla's server-side tab.

I do this all the time, but this time a window with an assert error message showed up.

Here's the backtrace:

    ASSERT INFO:
    QueueView.cpp(1231): assert "(res & (0x0100 | (0x0002))) != (0x0100 | (0x0002))" failed in SendNextCommand().

    BACKTRACE:
    [1] wxEvtHandler::TryHereOnly(wxEvent&)
    [2] wxEvtHandler::ProcessEventLocally(wxEvent&)
    [3] wxEvtHandler::ProcessEvent(wxEvent&)
    [4] wxEvtHandler::ProcessPendingEvents()
    [5] wxAppConsoleBase::ProcessPendingEvents()
    [6] wxApp::DoIdle()
    [7] g_main_context_dispatch
    [8] g_main_loop_run
    [9] gtk_main
    [10] wxGUIEventLoop::DoRun()
    [11] wxEventLoopBase::Run()
    [12] wxAppConsoleBase::MainLoop()
    [13] wxEntry(int&, wchar_t**)
    [14] __libc_start_main

I tried the "Continue" button, but the popup would show up again and again, so I eventually chose "Stop", and then FileZilla crashed (unless closing it is what the Stop button does).

I have no idea how to reproduce this systematically. It only happened randomly this one time (and I'm sure it'll happen again in the future, but it certainly doesn't happen often)

[php4fan]

Happened again.

If I choose not to stop and not to show the error message again, the file is actually not uploaded, but also not added to the "failed transfers" list

[Tim Kosse]

Outdated version. You need to update to the most recent version of FileZilla.