Ultratech button is very harsh/sharp on the fingers

Sorry not english native can´t find the proper word

I just got my first Ultratech and i noticed the button realy digs into my thumb/index finger when retracting the blade, the push side is fine but the side of the button you "pull" down realy digs in

this is my second microtech, first one was a Dirac DE where i dont have such issues?
Anyone got i similar expierences or advice to fix it without losing the guarantuee?