Does shutter shock look like this? Problem with EP-5

Hello! Having used E-M5 happily and effectively over 3 years it started to produce very thin reddish horizontal lines on images. Sensor coming to its end probably. So I bought a new E-P5 + VF-4 just for 399€ and was happy again...about a week. It seemed to work perfectly and produced as great images as my E-M5 had done. In few images I sort of noticed something like curious grain structure or pattern that I hadn´t seen in E-M5 files, but I thought that the newer processor just does something differently. Another fellow photographer looking at one JPG file on mine said that there are as if jpg conversion artefacts. I still didn´t suspect anything wrong until I went for a vacation and returned with hundreds of blurred photos.

I shoot RAW and use mostly Zuiko 12-40 F2.8 but the blur is there with other lenses as well in certain conditions. Also I have tried all possible combinations with IBIS on and IBIS off, Anti-shock 0 on and off, with and withou tripod, with and without 2 sec delay etc. but nothing seems to help.

It seems that lower shutter speeds like 1/30 - 1/70 produce less blur but faster like 1/200 - 1/4000 are all mess. Sometimes a camera position seems to affect a little as well.

I never had any shutter shock issues with E-M5 or E-P2, so I wonder is this shutter shock or something else.

Here´s a 100% detail from an unprocessed DNG from Lightroom. Sharpening does not help at all.

The phenomenon looks exactly the same in all blurred photos and as said I have hundreds of those - about 90% of my photos from vacation. Luckily I had a with me also 2 other cameras, so I am not banging my head to a wall, and there´s warranty for E-P5.

Thanks for looking,

Pekka.