UP24 and activity calories

Talan79

Anyone else notice calories from step activity being weird. I also cannot see step count more than five previous days on MFP.
Here is the listed step count and calorie adjustment.
5,950 - 236 calorie adjustment
11,321 - 50 calorie adjustment
12,096 - 141 calorie adjustment
7,421 - 59 calorie adjustment
14,299 - 256 calorie adjustment

I think the adjustments seem off. I don't eat back my calories so it doesn't matter, but the calculation seems off. Anyone else having this issue?