<p>When this glitch is happening, is there any output on the console? (Start Geany with <code>-v</code> option)</p>
<p>Another thing would be to run Geany with GDB and see if fires off a lot of threads (GTK+ does this sometimes and it can block, I guess when they're joined). Additionally, in GDB, if you're fast enough and can interrupt it using <kbd>Ctrl</kbd>+<kbd>c</kbd> while it's stuck, the resulting backtrace would probably be useful to see what's it's doing.</p>
<p>A final thing to try might be to run Geany with <a href="https://wiki.gnome.org/Projects/GTK%2B/Inspector" rel="nofollow">GtkInspector</a> and see if anything looks fishy with the signals as <a class="user-mention" data-hovercard-user-id="811085" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://github.com/elextr">@elextr</a> mentions.</p>

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