A320Neo - flight gets corrupted during approach

So this is my 2nd time flying from EKCH to EHAM where things went absolutely nuts during the approach fase. Dialing a selected speed led to a totally freak-out on the AP and it went into an uncontrollable climb for 10 seconds. Then my cockpit camera suddenly freaks out, is just locked to the left view or even 180 degrees backward to the seat! I’m not able to reset to the default view. Then the program crashes. I had this happening yesterday as well at the exact same flight plan, at roughly the same time on the approach fase. At this stage the sim is totally unusable for me - everyting normal at cruise speed/altitude, but when things get interesting during approach the program just goes nuts and crashes.