Using mjai-reviewer for analysing tournament games (different rules)

[Sashawarma]

It's clear from the description on mjai.ekyu.moe that mjai-reviewer is to be used only for "standard games with common rules".
However, I'd like to know why that is the case.
For context, I'd like to analyse the games from the tournament on Mahjong Soul I participated in. However, it's impossible, since this tournament had 30k starting points as one of the rules, I'm met with "the sum of points must be 100000" error.

After manually editing the tenhou.net/6 JSON (decreasing the starting points to 25k instead of 30k), I was met with the "negative points" error, since some games would end shortly if it wasn't for the increased starting points.
Basically, "the sum of points must be 100000" and "the player can't have negative points" are the two reasons I can't analyse my tournament games without some weird gimmicks. So, I'd like to know two things:

1. Is it the limitation of mjai-reviewer or Mortal as an engine?
   As far as I know, NAGA doesn't have such an issue and it can analyse games with both the increased starting points and players going into negatives.
2. Whatever is the case, is it possible to fix these issues?
   Mortal is incredibly convenient for learning purposes, and I'd rather not use the roundabout ways to analyse these games with Mortal.

Thank you in advance.

[Equim-chan]

1. Is it the limitation of mjai-reviewer or Mortal as an engine?

It is a limitation of Mortal.

Regarding negative points, Mortal cannot encode points outside the range of 0 to 100000, and any values beyond this range will be clipped. This is a hard limit.

As for the sum of points, this is a soft limit. If the sum is not 100000, Mortal may still work but in an undefined manner, as it still assumes the sum is 100000.

2. Whatever is the case, is it possible to fix these issues?

For negative points, it's unlikely without redesigning and retraining. You could try adjusting the points to fit within Mortal's accepted range.

[Sashawarma]

I see. Thank you very much for the quick answer.

In that case I'll adjust the points as per your suggestion, since that's the thing I was thinking about too.