random result or error

Hello Altair Team,

I have created a model for front crash calculation in radioss in Hyperworks version 2019. in version 2019 this can be calculated.

now i can use the version 2022.
as soon as I load the model here, seemingly random things happen.
sometimes i get error -messages or warnings quite fast. from this i get no calculation results. on a next try, hyperworks makes 1 or 2 restarts and then the model can be calculated. 
what can be the reason for this seemingly random results.

( in the attachement: the .rad files and one example of an "error"- output file)