After the upgrade of our K1000 to version 6.2 I noticed a lot of errors in the application event logs on every machine relating to "ACUConfig". These appeared every two hours. I tracked down the ACUConfig executable to the C:\Program Files (x86)\Dell\Kace directory and it looks like when the machine checks in these events appear.
I logged a call with support and they said they had another person log a call with the same issue. They have passed this to engineering to have a look at.
You may want to see if this affects your machines as well and maybe log a call