MAGIC FORMEL 2.0 physical cartridge not working

[deftmega]

MAGIC FORMEL (https://www.c64-wiki.de/wiki/Magic_Formel) v2.0 (says so in the menu) -from my memory- locks up immediately after boot. Happy to borrow it to someone for investigation :)

[deftmega]

More info here: https://rr.pokefinder.org/wiki/Magic_Formel

[deftmega]

I verified with MEGAFLASH (0.96 release) which says "Cartridge type: none". Manually selecting C64 core 5.1 also does just nothing on r6. The lock-up mentioned in my first post was from my memory and possibly on r3. Awaiting further instructions.