Es 200x temporal 4

Hey I have a Fire-Lite es 200x in a storage building that’s about 150,000 sq feet.
The system has 84 pc2wl-lf set to temporal 4. I’m powering them off a fl-ps 10 and I’m activing them from my nac one output on my control panel and I’m going into my input 1 on the power supply. My problem is getting them to synchronize.i have also check and tried the 2 temporal 4 setting on the back of the pc2wl-lf. I have gone through tech support and they haven’t been able to help. I checked my loads and for voltage and I’m below the threshold. I have eliminated the power supply and wire run by bench testing them with 3 of the horn strobes off the control panel and then still won’t sync. Has anyone else ran into this problem yet because Fire-Lite is making it sound like I’m the first one to have this problem. Also to note that everything synchronized perfectly when the system was set to temporal 3