Shield Arms Gen 3 mags loose in Glock 43X

Two Glock 43X's
(1) Glock 43X standard with OEM slide stop
(1) Glock 43X MOS with Vickers Extended slide stop
(2) Shield arms Gen 2 mags with standard base plate
(1) Shield arms Gen 2 mag with +5 base plate
(2) Shield arms Gen 3 mags with standard base plate

The (2) Gen 3 mags and (1) Gen 2 w/ +5 base plate have movement up and down when seated and lead to slide lock lifting causing malfunction.