Possible Meter Bug

I often use the recording level meter undocked and in a vertical format. However, as I drag the meter into this shape, the decibel markings disappear. This happens a soon as the meter is taller than it is wide, i.e. when the scale flips from the horizontal to the vertical.
I am using the latest version of Audacity on Windows 10.

This is a known and logged bug;

If you read that bug thread you will see that Muse do not intend to address this bug for version 3 Audacity - but it may bet fixed for V4 (or vertical meters may disappear altogether in V4).

Note that there is another bug logged for vertical meters:

Peter