Navigation Bar Overlapse

After the last update I am having a small issue with my navigation Bar in Android.
I have it enabled all the time as well as the legacy toolbar. So I have Quick Access for my system as well as the application buttons.

After the update glitch at the moment I'm opening my gboard. The navigation bar becomes see trough as well as the application extends to so it's behind the navigation bar. Making it almost impossible to press any button from the legacy toolbar.
After disabling My gboard it's going back to normal and it's not being blocked by the Navigation Bar anymore.

I've also tried disabling The Navigation Bar in the settings. But then it still pops up as a see-through navigation bar when opening the gboard. Which is the normal function in Android.