Single-pass adaptive analysis completes while Multi-pass aborts with fatal error

Hello,

I have performed some calculations on an assembly containing some contacts.

Firstly, I run the single-pass adative static analysis and it completes without any problem.

Secondly, I performed the multi-pass adaptive analysis on the same identical input model, with no modifications with respect to the single-pass one, but in the end it aborts with fatal error:

anyone could explain what is it due to? maybe for convergence related reasons?

this is the error message in the diagnostic window if ti can be of some use.

thanks

bye