Hi Johan,
Just to report back, so yes the problem was the "2000" in the config of fsltl, because now it seems all good, I restarted the sim many times and all seems to work, but I also have use less cluster in GSX.
What I don't understand is the fat the the AIG was doing the same, disappearing with GSX, very weird.
Anyway now FSLTL is working with GSX for the time being, thanks again for the help and hint on the cfg.
I hope it will help others, in the same sitution.
Regards