So I was shooting today with the Pl25 and using the two piece battery grip. At times my Omd was not responding to any presses unless it was a full press on the shutter. It would not do anything with a half press or even pressing the arrows. It also acted as if the camera was lagging. I'm using a 64gb class 10 Sandisk card.
At first I thought i was accidentally pressing the two function buttons on the grip, but when i tried to repeat it, i couldn't. Eventually it begins working fine and all is good.
It's never happened before.