User Group Discount calculate wrong

User Group Discount calculate wrong

Login as "all4us" (sent Login as PM)
Goto
-> "STORE" (TOP/RIGHT)
choose
6inches Cajudoo Standard = 29,50€ click and add to basket
->checkout price changed to 59,- (100%)- 19% ->WRONG

User
all4us
special dealer 40.5% discount
UK
Commercial with UID

WHAT HAPPEND?

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