Track numbers disappear

[ohrenkino]

@pgh

Now I understand that when more than 1 file is selected, only shared text is displayed in the placeholders, not when the text differs

So the display changes to <keep> which would have been a much more exact description than to say the numbers disappear.
And as you don't know what I expect as the "exact" description and I don't know what you mean by "disappear" it is always the easiest way to avoid misunderstandings and doubts by supplying a screenshot that shows the problem.

Just a footnote: the same behaviour should be observable for TITLE as well - or the lyrics.
Why the covers disappear

Cover Art disppears after Saving Changes

Sometimes my cover art disappears after I make and save changes in the Tag Panel to multiple files highlighted on the List. It returns back after I delete the cover and paste it again. However, sometimes I delete the cover and a different cover appears. Is this preventable to show nothing in the Tag Panel when I delete the cover?

cannot be answered by selecting multiple tracks unless the all have different embedded pictures - but then it should be noted next to the picture frame that this is the case.