If you place two ships near a sea yard, and swap from one another while the ship you jump from is being repaired, the repairing animation will still play out on the ship you jumped to, even if is full on health.
In the case the health of the ship you jump to is not full, it wont heal the ship. And the animation will or will not play out depending if it was playing or not before you jumped ship.
These can be fixed as easily as going away from the Sea Yard area of repairing and come back.
Steps to Reproduce
Jump form ship to ship near a Sea Yard
Jump form ship to ship near a Sea Yard
A developer has marked this issue as fixed. This means that the issue has been addressed in the current development build and will likely be in the next update.