When the user interface is set to Tabbed, Impress crashes on start Steps to reproduce: 1. Open Impress 2. View -> User Interface... -> Tabbed Actual result: Crash when the Tabbed UI is set Trying to reopen Impress results in crash on start From my testing, it only crashes with Impress Expected result: No crash Version: 26.8.0.0.alpha0+ (X86_64) Build ID: 56f2abbf3f107d849305df507818f00e6f6086df CPU threads: 8; OS: Linux 6.17; UI render: default; VCL: gtk3 Locale: en-US (en_US.UTF-8); UI: en-US Calc: CL threaded Bibisected with linux-64-26.8 commit f1a65f791a8ed745309b881cc367f7ae3a0b8985 author Heiko Tietze <tietze.heiko@gmail.com> Fri Feb 13 14:09:44 2026 +0100 Resolves tdf#170485 - Access to Theme Colors per Notebookbar in Impress "Design" tab added and new control placed there follow-up to 705dcfe362d4a6e99c1ef2b09a343cdbfe4f4674
Reproduced in Version: 26.8.0.0.alpha0+ (X86_64) Build ID: 56f2abbf3f107d849305df507818f00e6f6086df CPU threads: 8; OS: Linux 6.1; UI render: default; VCL: gtk3 Locale: es-ES (es_ES.UTF-8); UI: en-US Calc: threaded
I confirm that reverting f1a65f791a8ed745309b881cc367f7ae3a0b8985 prevents LO from crashing.
Created attachment 206133 [details] bt Here's a bt retrieved on pc Debian x86-64 with master sources updated today.
The crash happens after mxIconViewThemeColors->insert(). Samuel, do you have an idea?
Samuel Mehrbrodt committed a patch related to this issue. It has been pushed to "master": https://git.libreoffice.org/core/commit/c7e1b07876625ac512291d338e30f402e109c582 tdf#171266 Add missing properties to theme selector panel It will be available in 26.8.0. The patch should be included in the daily builds available at https://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: https://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.
Thanks for the fix, Samuel!