In both the mouseover/hover box and the unit information panel (lower left corner after LMB clicking on it), the unit's name is truncated.
For example my TSS Gunboat Meeple Class is truncated to TSS Gunboat Meeple.
This gets confusing when I have many derivatives (eg TSS Gunboat Meeple Ib Class, TSS Gunboat Meeple IIc Class).