Too Many Parenthesis

Dear FLUKA Experts,
I’m running a simulation (file.flair (13.5 KB)) which has no errors in the geometry But a receive the message;
*** Too many terms in parenthesis expansion ***
*** Execution terminated ***
I guess it’s because of the definitions in the ‘Gas_Sen’ and ‘Gas_Mult’ regions? I tried the “Optimize” Option but it didn’t work.
I’ll be delighted if someone could help me resolve this issue.
Many Thanks in advance,
Zavier N. Ndum

Did you first “Expand” the problematic region as mentioned in these previous threads?

This solved my Problem. Just by expanding the regions and readjusting the expressions. Thanks a billion times
Zavier N. Ndum