Olympus Japan announced it will release a new FW update on May 24. Here is the Google translated press text:
Thank you for your continued patronage of OM Digital Solutions products.
We are currently receiving inquiries from customers using the “OM SYSTEM OM-1” that the camera freezes during shooting.
As a result of our research, it was found that when shooting with the EVF (viewfinder) frame rate set to “high speed”, freezes occur depending on the shooting conditions.
We are currently preparing for his web release of firmware that has identified the cause and addressed this phenomenon.
Customers who have experienced the above phenomenon are kindly requested to set the EVF frame rate to “Standard” before using it.
We will inform you of the firmware release date at a later date, so please wait for a while.
We apologize for any inconvenience caused to customers using “OM SYSTEM OM-1”.