Inconsistent Artist counts showing on a TAG

I’ve noticed a inconsistent Artist count on a TAG between the FOCUS search and using the ‘My TAG’ screen,

From FOCUS the Artist count is 43, from My Tags it is only 42

The difference is on ‘Informatik’, which has the TAG - I don’t understand the difference.

Please see screen shots :-

only a very minor thing, but could be more depending on the reason for the difference.

Keep p the good work, 1.8 is great !