Kody Krypton – shield hardware acceleration causing display artefacts

Since I use Nougat on the shield (Kodi Krypton) every now and then there are display artefacts. When hardware acceleration is chosen, somtimes, after having played a movie and beeing back in the kodi menue, there are little, very short picture failures, such as grizzle or coulored pixels. The artefact disappers after some second.

When hardware acceleration is stopped the problem doesn’t occure anymore.

Anyone having same issues? Any known solution?