Strange stripes instead of blur-effect
Hallo Adobe Premiere Elements users!
Recently I exported a video clip on which I applied a blur-effect. In Premiere Elements everything looked correct, but after exporting it, the effect has much less intensity than I want it to have and in addition it has such strange horizontal stripes instead of an normal continously blur effect!
Here you can see my problem after exporting the video to mp4:

And that is a screenshot from Premiere Elements and how I want it to look after export:

Could you pleas help me with that problem?
Best greetings, Thomas!
