Exporting selected cells as jpg / png in calc Version: 6.2.1.2 produces white borders

[Still]

Exporting selected cells as jpg / png in calc Version: 6.2.1.2 produces white borders how can I fix this so no white border artifacts are exported?

[LeroyG]

Same in LibreOffice 6.3.6.2 (x86); OS: Windows 6.1.

Reporting a bug.