I have a Orion-Tr 12/12-Volt 30 amp 360-Watt DC-DC Charger, Non-Isolated connected to a truck. Historically, I haven't had any issues with it. Recently however, the amperage seems to be cycling on and off in short intervals when the truck is on and the charger is connected. The displayed charge state (bulk) doesn't change when connected via Bluetooth, and the truck alternator voltage doesn't seem to fluctuate either. It doesn't appear to be impacted by battery state of charge.
The other end of the system contains a MultiPlus II, 600Ah of Battleborn batteries, a SmartShunt, and 3x SmartSolar controllers.
Does anyone have any idea as to why this might be occurring? Screenshot of the cycling from the SmartShunt attached.