Hi. I found this thread searching for issues with the CZC A01. I bought the A01 Compact yesterday from CZ Customs since they're a few miles from me. After shooting about 75 rounds, as the gun starts to get really hot, I end up getting light primer strikes. It becomes more frequent the hotter it gets. I stopped by CZ Custom today and they changed the firing pin spring and tested a magazine through it. No issues so I'm off to the range. No issues after the first 100 rounds. As I start the 101 and onward, guns really hot, light primer strikes again. So, the A01 Compact is back with CZ Customs. This time, I saved the rounds. Strange thing is, it only happens when it's hot. I noticed you mentioned that below so I thought I'd chime in.
Other that this hiccup, it's a great gun and a ridiculously soft shooter. Stewart with CZ Customs has been great and tried to help me while I waited but this issue will take more testing. Hopefully, they can convert it to SAO and add an extended left safety while it's there.