Created attachment 154186 [details]
If you start Bibliography you see in an big table all columns (most are empty). With right click on the header you can Hide an column, but the hide value wasn't stored somewhere cause after a new start hide column was not hide.
Confirm with Version: 188.8.131.52.alpha0+
Build ID: 49a634425f0d433541f8309f2575c8bdfd67afbe
CPU threads: 4; OS: Linux 4.15; UI render: default; VCL: gtk3;
Version 184.108.40.206.alpha0+ (Build ID: efca6f15609322f62a35619619a6d5fe5c9bd5a)