1. Is it usual that InDesign and Photoshop can't load and use a variable font if the static instances of the same typeface (same naming) are also installed?
Illustrator loads and operates both in parallel without problems.
2. I have noticed that my variable font (let's say at semi-bold 600 point on the axis) makes a somewhat shorter text line than Semi Bold static instance. The difference is relatively subtle in normal text, most obvious using repetitive OOO...I thought it might be due to the fact that instances have hints while variable does not, but it's the same with unhinted instances as well. Here is how the end of the line looks. Is this a problem?