<p>That's a 4.1.6 (patched with <a href="https://github.com/kamailio/kamailio/pull/26" class="issue-link" title="websocket: Check frame->wsc in ws_frame_transmit for NULL.">#26</a>), but I believe I checked master when looking into the source why this happens.</p>

<p>Thanks for the feedback. Now I'll "just" have to reliably reproduce this first :)</p>

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