I can confirm the issue on Windows using QGIS 3.16.12 (3.16.12-1) and 3.20.0 (3.22.0-1) from OSGeo4W v2. The issue doesn't occur on Windows using QGIS 3.16.12 (3.16.12-1) from OSGeo4W v1. Regards. Andrea Giudiceandrea