[Libreoffice-bugs] [Bug 141485] New: Flashing UI of sidebar

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=141485

            Bug ID: 141485
           Summary: Flashing UI of sidebar
           Product: LibreOffice
           Version: 7.0.0.3 release
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: UI
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: stanislav.horacek at gmail.com

Created attachment 170946
  --> https://bugs.documentfoundation.org/attachment.cgi?id=170946&action=edit
video of flashing sidebar when moving mouse over it

UI controls in sidebar are always flashing.

Steps to reproduce:
Open a Writer document.
Open the sidebar, e.g. Properties or Styles deck.
Observed: UI controls in the sidebar (e.g. icons, list of styles) are flashing
when doing any action in LibreOffice - moving mouse cursor or typing.

Firstly noticed in 7.0 series, persists in the current master.

I tried to change some settings (hardware acceleration, Skia) with no effect.

clean user profile, OS: Ubuntu 20.10 with Xfce desktop environment

Tested in the latest master:
Version: 7.2.0.0.alpha0+ / LibreOffice Community
Build ID: 036053b969bf95a4cb9b16601f2651ca227dd429
CPU threads: 4; OS: Linux 5.8; UI render: default; VCL: gtk3
Locale: cs-CZ (cs_CZ.UTF-8); UI: en-US
TinderBox: Linux-rpm_deb-x86_64 at 86-TDF, Branch:master, Time:
2021-04-03_01:38:00
Calc: threaded

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