Sorry for your problems really. I have a similar situation (I avoid saying the same:). Did you consider testing for parasites, bacteria and viruses? I was 100% sure I do have only candida and parasites and guess what? Found 2 more nasty bacteria and 2 viruses all of them can impair the liver function. I'm not saying you have them but its better to check.
I have the same issue with oxbile supplements and one idea is that giardia feeds on bile so could be that. there are also other things feeding on bile. Lecityne and chicory stimulates liver to produce more bile - if your liver is already exhausted and impair (which I belive it is) more pressure on it is not ok. I found relief by excluding bile from enzymes even if its "good" brand. Just try several days food that doesnt produce more bile. Sometimes milk thislte help but try something without alcohol in it - some extracts (even pills) do contain it. Although milk thistle stimulate also some bile production but its a good alternative.
In my opinion and research I did found many pathogens are eating carbs including potatoes. If you search the net see klebsiella foe example...but also protozoa
One more example to make you think...Check for viruses I have EBV and CMV both feeding also on ...nuts?
So my advice is if you can afford try testing.Is better to know who you are dealing with and learn about them.
Try a good lab - for me it took 3 years to find some of the real cause because poor lab technique. I,m in Eastern Europe now. And try protect liver as much as you could - no toxins, not too much efforts.