Walkin freezer puzzle

Got this walkin freezer that has a heatcraft model - PTN031L6B all in one unit mounted ontop of a 6x10 walk in freezer

70F outside walkin freezer
8F inside walkin freezer
28.5f wet bulb inside
58 wet bulb outside
txv
265 psi high side
84f high side line temp by txv 116F before condenser
42 psi low side
17F low side temp
evaporator temp -10

18 SC
22 SH

the set point is -10F but the freezer will not go below 8 F

evaporator and condenser are cleaned.

28oz of 404a

any ideas ?

source https://hvac-talk.com/vbb/threads/2242811-Walkin-freezer-puzzle?goto=newpost