The posting rules are as always:
The Windows system clock is running way too fast when calls are made (e.g. querying axis status) to an NI-Motion board. This has been currently observed on NI PXI controllers only. It can be critical as it of course also influences timestamps within LabVIEW.
A full description can be found in this forum thread.
May is basically over. Let's continue in the June bug thread.