Help with head and macerator power

[WY Naut?]

I have a 2022 R6 with a Jabsco 37010 electric flush toilet and a Xylem 18590 macerator. The toilet flushes with a momentary push button switch mounted adjacent to the potable water lavatory and the macerator is activated with a bocatech switch mounted on the wall. There are two other devices activated by bocatech switches - the light for the head locker and the pump for the lavatory water. There is also a dometic tank monitor. Of the head related devices, all have worked flawlessly since brand new, except that today (after a flawless day on the lake yesterday) the toilet flush and macerator have no power while the others are fine. Batteries are at 12.8 V. Other than the 1 A tank monitor fuse, I cannot find any in-line fuses associated with the head even though I have opened up every panel between the head and battery switches. Just aft of the head the wire groups for head disconnect, macerator and toilet are still labelled separately, but by mid ship (half between head and battery panel are combined into one large grouping but still appear to be separate wires.. The breakers at the battery switch all appear normal, but none are labelled with anything that intuitively suggests head, macerator, sanitation, etc. I would appreciate any suggestions or knowledge of any inline fuses etc. In the vicinity of the battery switch / breaker panel I can only find one 10 A fuse associated with battery combination device, one 5 A fuse for clean power to stern stereo control and inline large fuses linked between batteries. Thank you for reading and any help!