We added a REPEATABLE flag (default TRUE) to force the random number generator to seed with a fixed value. But this feature is not present in MFIX 24.1.1
If you upgrade to 25.1.2 or newer, this flag will be available. Note that there is an issue with 25.2 on Windows, we will be issuing a bugfix release today or tomorrow. If you are not using Windows it is not a problem and if you are, there is a workaround (see Problem running MFiX 25.2 on Windows - #5 by edcanop )
Please let us know if this works for you.
– Charles