Pokit Pro false measurements

I just fixed following problem with my (new) Pokit Pro by rebooting it (hold button for 15sec.):

Measuring resistance, voltage or amperage showed false Data (0.2V, 600kOhm, 0.191mA, 1.91A with open ends, different but also wrong data while measuring something).

The Oscilloscope, continuity tester and (i think) all other modes worked fine.

After the reboot everything worked.