When a description can't fit, it will take the whole width of an entry, removing mods' name. The height of that entry is affected then by the length of the mods' name, I assume there is no space and the name is written vertically but is off-screen.
Screenshot from current version:

#29 Shortens the description of In-Game Account Switcher, removing redundant text, which fixes this specific case at the default window size.