I am recently encountering an issue with how hit points are calculated for RM Classic. Please see attachement:
BD - no base bonus - wrong level bonus.jpg

FIRST ISSUE
The level bonus is wrongly calculated for Body Development. The PC is a Fighter Lvl 1, so it should be +3. However, it shows +15, which is obviously wrong. All other level bonuses are calculated correctly, as you see from the screenshot, just Body Development is wrong


SECOND ISSUE
According to the rules, Hit points should be calculated as

HP = (Co-Value/10 + Rank Bonus) x (1+ Co-Bonus) + Level Bonus

In the example, this would be

HP = (9 + 20) x 1.15 + 15 = 48.35, so probably to be rounded on 48. If somehow, the formula used in the FG-RMC ruleset would use the correct value for the Level Bonus, i.e. +3, he result would be 36. And if the formula used in the FG-RMC ruleset ignored the base bonus (Co-Value/10), the result should be 37 (20*1.2+15

However, it shows 38 HP which is wrong.

I assume that the calculation
1) ignores the base bonus (Co-Value/10)
2) uses the wrong level bonus (+15)
because HP = Rank Bonus x (1+ Co-Bonus) + Level Bonus = 20 x 1.15 +15 = 38


Has anybody observed the same? Any way to correct this?

For info: I am using the "Rolemaster Classic (RMC) BHT Con Bonus" (which should correct the missing base bonus, but does no longer it seems) by thecatacost, but the errors persist even when I disable it.