Software crash, flash back

I found that Simlab often had software crashes and automatic exits during pre and post processing(especially when the mesh amount is large). For sxample，just now, I happened to encounter another software crash, which occurred in the process of opening "Results" after a 5min local calculation，when Simlab is used for fluid thermodynamic simulation calculation.

I want to ask the possible reasons why this often happens when simlab is used for fluid thermodynamic simulation.

Thanlk you!