So recently I took my E-M1 to get serviced for the control dials at an authorized service center. I got the camera back and it was fine. The other day I purchased a GX85 and 15mm Panasonic lens. Both cameras seemed fine. I put the 15mm Panasonic on the E-M1 to see what it was like, and noticed that the AF was extremely jerky and loud, so I figured it was an issue with the camera and lens not communicating well. I didn't look into it online and just put the Panny lens back on the GX85 and put my Olympus lens back on the E-M1. Now I have a weird situation, both the 15mm Panny and my Olympus 40-150mm Pro lens cause the E-M1 to have serious problems and it is totally unusable with those lenses. The screen will go black, or sometimes the colors invert with the screen refreshing only once every 2-3 seconds. The camera is extremely slow to respond to any controls. With an Olympus 14-150 II lens or a 14-42mm EZ lens, the camera is perfectly fine (also tried with a Zhongyi 25mm). The 40-150mm Pro lens on my gf's E-M5 ii is also fine. I am afraid to try the 15mm Panny on the E-M5 ii in case it causes problems there though. Is their a chance the Panasonic lens could have caused something faulty or weird to happen on the E-M1, and any reason why it happens also on the 40-150 but not other lenses? I tried using a different battery (had a 3rd party one in at the time) and no change. I looked all over this site, DPreview, and google but couldn't find others with this issue.