Dear all, I made another discovery. This seems to be caused by similar problem of the type VIIB Tower but happens on all SUBs/Towers.
Exactly as for VIIB Tower problem, it happens only when the top hatch of tower is opened (disappears when the hatch is closed).
On the sides of the towers artefacts (coming from internal structure of tower) are visible in particular circumstances, as you can see from my picture (indicated by mouse cursor)...
... Hope UBI will solve also this in the next patch...
Bye,
Mith.