It looks like the bush is binding on that side. GoMog has advice on that
Bushes GoMogI would talk to the garage
I don't think the bushes are binding. That's an entirely normal difference in spring height from side to side. If you took the car out for a drive and remeasured afterwards I guarantee it will be different.
The sliding pillar front suspension can only move up and down when the car is moving. You cant bounce on it statically to settle the springs because the geometry forces the tyre to try and scrub sideways....so it stops wherever it wants to when you stop.
It's one of the reasons that the SSL kit can take a bit of trial and error to get set up right....
Unless the car doesn't feel "right", I wouldn't suggest there's an issue
