Comment 10 for bug 1812754

No blanks here. I also tried with the gtk2 UI backend as that is what Xfce uses.

Could you link to the Ubuntu bug report? You can input it to the "See also" field.

Arch Linux 64-bit
Version: 6.4.0.0.alpha0+
Build ID: 1ce1c26dd98e6477139e08d1ebe89fa950ff5fb0
CPU threads: 8; OS: Linux 5.2; UI render: default; VCL: gtk3;
Locale: fi-FI (fi_FI.UTF-8); UI-Language: en-US
Calc: threaded
Built on 12 July 2019

Arch Linux 64-bit
Version: 6.2.5.2
Build ID: 6.2.5-1
CPU threads: 8; OS: Linux 5.2; UI render: default; VCL: kde5;
Locale: fi-FI (fi_FI.UTF-8); UI-Language: en-US
Calc: threaded