Bar Chart Visual - data labels / descriptions disappear

Hallo everyone,

I have an issue with the design of a bar chart. I want to force Power BI to show the data labels / values over the bars, even if I make the whole visual smaller. As you can see in my screenshot, if I have a height of over 400 the red values are shown very nice. If I make the visual smaller (height about 300) those values disappear. From my point of view there is still enough space to show them. Can I force PBI to do that? I tried a lot with the settings - without success.

Thank you very much for your help

Best regards
Mark

big / height over 400small / height about 300