Why won't this little icon change?

Hello dear CATIA User community,

Sorry to bother you once again for something so trivial, but I figure some of you would know how to help me with this. I found a similar question and it seems to be a bug, but maybe some of you know the answer.

 

I am working on a 3D model with some 2D drawings. Some of them have this icon:

Now, according to the User Assistance R2026x, that symbol means there is something out of date:

So...I did every update I could. I updated the views inside, I updated the main 3D model and fixed all the broken links and connections. Some drawings appear to be up to date now:

But not all of them! Despite this, the drawing is linked correctly, the views are pointing to the right object (I did the "modify link" function), there is no update icon and even if I force it with ctrl+U, nothing shows up telling me there is something out of place. 

 

Do you happen to know what I could do? The model is fine, the drawings are ok, but that icon wth an "x" is bothering me. 

 

Thanks in advance.