I checked: the baseline was 3 by default, when I enter a new text. I put it to 0 and now it works. Problem solved, thank you for your hint
I add that I tried to put a text in a completely new file v26 and it works perfectly. This is why I presume it's a bug from v25 to v26 that has to be fixed. The point is that I have to submit my co...
I'm using text tool and I have the same problem both in Scroll View and Page View. The text block is measure attached at instrument staff