Hull capacity goes up and down for a week at a time by about 10000
This is likely due to either a Fleet Boost being applied or running out, and/or a Doff project that improves Hull Cap. Unfortunately for Console players, they have not yet implemented a way to view modifiers like you can on PC, all you can see is there are a number of modifiers on a team-mate.
"You don't want to patrol!? You don't want to escort!? You don't want to defend the Federation's Starbases!? Then why are you flying my Starships!? If you were a Klingon you'd be killed on the spot, but lucky for you.....you WERE in Starfleet. Let's see how New Zealand Penal Colony suits you." Adm A. Necheyev.
Comments
This is likely due to either a Fleet Boost being applied or running out, and/or a Doff project that improves Hull Cap. Unfortunately for Console players, they have not yet implemented a way to view modifiers like you can on PC, all you can see is there are a number of modifiers on a team-mate.