PiZero Recalbox not starting

[Seramis]

Hi there, I am doing a new thread, because the issue doesn´t seem to have appeared yet. This is my setup:

• PiZero
• Powered USB Hub D-Link
• Wifi Dongle from PiHut
• compatible Bluetooth Dongle from CSL.

I have downloaded Recalbox 4.0 stable, then I powered up my PiZero. At the boot screen it freezes. If I plug in a keyboard however, it starts normally. Bluetooth and WLAN are working, but if I use the webinterface to copy roms, it is verry slugish and in 9 from 10 tries, the rom upload aborts.
Restarting the Recalbox ends in freezing againl, unless I plug in a keyboard... .

I have tried to use an unpowered USB Hub, as well as none at all. Without the keyboard it is not working... .