Bar chart not placing labels outside or inside, it displays some of then half-in half-out

very simple example I discovered that the labels where not placed correctly  -- data label configuration has not been changed, is just automatic -- so it should be either inside or outside for each label, but never half-way, right? 

you can see what I mean in this tweet https://twitter.com/AgulloBernat/status/1449845408897830922