We run Samsung Tab Active 2 with Android 8.1. We are seeing a number of cases, where the driver starts driving and the lock screen does not ever come up. We have found that pulling the tablet from the cradle and putting it back in the cradle will make the lock screen come up then. It doesn't seem like it is a dock issue as the lock screen should come up regardless of charging or not. We ensured the GPS is set to high accuracy. Any suggestions or ideas we can try? This is not limited to 1 device but we have seen it across probably 5 devices over the last few months and that is just drivers reporting it. I'm sure there are other drivers not reporting it.