Lakka 2.2.1 not booting fresh install




did a fresh install with the new lakka build 2.2 but it does not boot on my laptop. only flower screen. tried serveral displays and tvs but nnot even an other screen gives me something. when using older version 2.0 nothing is wrong and works great. but when updaing to new version same probleem. cant pst a log because i cant even ssh to it with putty. any idea whats wrong?