Runtime error parentheses

Hi,
I’m getting error when running my simple input (see attached)
”Too many terms in parentheses expansion”
I have created this geometry via a script that goes stp–>mcnp–>fluka and as I understand the regions created by FLUKA from this are complicated boolean expressions in the regions hence the runtime error. I believe the error is in the RmAir region. I’ve tried to “Expand” all regions and “Optimise” with no success. It seems to work with Flair 3.5 by inputting a number >1 in the paren of the GEOBEGIN card. However I would like to fix this also in Flair 2.3 (which does not have this possibility).

Thank you and best wishes,
Marco

FC_18_11_1.inp (9.6 KB)

FC_18_11_1.flair (8.5 KB)

Hi @mhartmann

Flair v2.3 is very old (more than 8years old), obsolete, nor it is distributed by its copyright holders