Download daily build from 2025-06-27. Here used https://dev-builds.libreoffice.org/daily/master/Win-x86_64@tb77-TDF/. Make an administrative installation (because of bug 167281). Set presenter console StartAlways to true in Tools > Options > LibreOffice > Advanced > ExpertConfiguration > org.openoffice.Office.PresenterScreen. Open a presentation. Start slideshow. Go to next slide. Click on EXIT => crash. It does not crash in daily build from 2025-06-22.
Created attachment 201534 [details] bt at random On pc Debian x86-64 with master sources updated today + gen rendering, I don't have a crash but it seems to hang. Retrieving a bt at this moment may show a pb of lock.
Created attachment 201535 [details] Call stack with debug build from today master Stops in line #54 of C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.44.35207\include\mutex
I don't get a crash. Regina: does it still crash for you? Version: 26.8.0.0.alpha0+ (X86_64) Build ID: 680(Build:0) CPU threads: 2; OS: Windows 11 X86_64 (build 26100); UI render: Skia/Raster; VCL: win Locale: en-US (en_US); UI: en-US Calc: threaded