Surface Passive tracers issue when apply extenison then compression?

[hanybit]

Hi all, so i had an issue when I assign passive tracers to surface coordinates so to use it in the surface processes. So the original function of passive tracers and surface processes works fine when you start your 2D model in extension or compression from begining but when you apply extension followed by compression it failed or give weird patterns (attached) like passive tracer outside local cell / swarm escaped / particle out of domain / cannot locate particle????
before fix

[julesghub]

I see odd particle distributions at the surface - that looks problematic.

Some questions to better understand what's happening:
What version of the code are you running?
Does the model work without surface processes enabled?
Does it work without the passive tracers included?