The hp stop healing bug is unfixable from what I know.
There are several fixes that include using the save game editing tool that we've documented in this forum and on Viking conquest where it is also seen.
I personally never encountered it, probably because I don't I have time to play beyond 180 days or so.
I added healing horns to the inventories to specifically fix this issue.
The companion issue is fixable but I don't recall it being a persistent problem.
It had something to do with one of the scripts I added but removed later.
A new game with the latest patch should not have that problem, but I'll try it out again in January and fix it.
In sum, you should be clear to go ahead now and play as long as you save games frequently.
I hope to have some workaround or fixes in Jan.
There are several fixes that include using the save game editing tool that we've documented in this forum and on Viking conquest where it is also seen.
I personally never encountered it, probably because I don't I have time to play beyond 180 days or so.
I added healing horns to the inventories to specifically fix this issue.
The companion issue is fixable but I don't recall it being a persistent problem.
It had something to do with one of the scripts I added but removed later.
A new game with the latest patch should not have that problem, but I'll try it out again in January and fix it.
In sum, you should be clear to go ahead now and play as long as you save games frequently.
I hope to have some workaround or fixes in Jan.