I’m using the latest Retropie SD Image. Updated the raspbian, retropie_setup.sh Script and the RetroPie Binaries.
Afterwards I followed the Wiki Instruction  about the Amiga emulation (slightly difference: uae4rpi instead of uae4all) and copied the kick.rom under /home/pi/RetroPie/emulators/uae4rpi/ and the gamerom file under /home/pi/RetroPie/emulators/uae4rpi/roms.
I start the Amiga emulation as follows:
Either I get the typical Hand/Disk-Image (e.g. ) or a black screen. In the typical screen no keyboard input is recognized. I only see three color symbols in the bottom right corner: one red, and two green with numbers. The first green one change from 00 to 01 after a few seconds and vice versa.