When I started a new campaign with OHII 2.5 with CSP Magui Interface for SH5 v3.01 (UI Mods), I found out that in the first game, where you are based in Memel (Klaipeda), you will not be able to control the submarine through the screen, but only through the map and keybord.
When you attack and use your periscope and/or binoculars you can still use the screen to select target, torpedo and adjustments.
When you finish your first mission and return to Kiel, everything will be back to normal.
It reminds me of playing SH5 with the tutorial, you can't do much before you sink the first ship, here you just had to wait until you return to the base.
