The value you read in your auto maybe right.
I dont exactly know how it is recorded but I think that the automation do not record the value of the pot but his position surrely encoded in a value from 0 to 128.
I will guve it a test but that is how I think it is.
I do not use automation record as it is not well made under lmms as I think.
Doing an automation track for all pots you want to record is a sick pain as I usually use near 40 pots midi linked.
In fl you only put an automation track and it records all things you do : simple!
A bientot!