The same issue continued even in my C drive. Is it possible I’m running out of memory? I am trying to simplify perforated geometry as you demonstrated on your youtube channel, but I wanted to verify our results by simulating the whole model. The whole model has a 5m facet count.
Sorrry for the late reply.
Molflow 2.8 is designed to up to ~200K facets, 2.9 is up to ~1M depending on GPU and memory.
5M is way over what’s practical.
You can check the memory status in task manager, the error message might come from pugiXML library as it cannot allocate the memory for the XML tree to be assembled.
In general, I would advise to limit the geometry to 200k facets, with tricks described here: https://molflow.web.cern.ch/content/documentation-designing-geometries-molflow