Also, the bug still happens, but apparently less frequently, when libreoffice is launched with env variable LIBGL_DRI3_DISABLE is true (i.e: LIBGL_DRI3_DISABLE=true /usr/bin/libreoffice) as advised in https://bugs.launchpad.net/ubuntu/+source/pcmanfm/+bug/1782984
It's really hard to reproduce, it seems that most often the bug is triggered when text is selected (to be copy/cut) in libre-office writer.
Also, the bug still happens, but apparently less frequently, when libreoffice is launched with env variable LIBGL_DRI3_DISABLE is true (i.e: LIBGL_DRI3_ DISABLE= true /usr/bin/ libreoffice) as advised in https:/ /bugs.launchpad .net/ubuntu/ +source/ pcmanfm/ +bug/1782984
It's really hard to reproduce, it seems that most often the bug is triggered when text is selected (to be copy/cut) in libre-office writer.