I do have one small question. The good news post said there was no bacterial imbalance but that Metronidazole (Flagyl) had been prescribed. If you can go back on some of my posts regarding stasis/ileus, this drug specifically targets the bacteria Clostridium which grows due to a die off of beneficial bacteria...and imbalance. When the gut starts to move, most of the time it will be a very smelly event and many times with mucous.
We've raised Dwarf Hotots for about the last 10 years and as Naturestee mentioned, they can be more prone to GI problems. This is a congenital defect related to cell migrationof the nerve endings in the intestines. The same gene that controls the nerve cell migration also controls pigment cell migration (hence the relationship between hotot markings and GI problems).
Diet can help. Additional roughage works well. I've also found oats to be helpful.