Using Surpac 2021 RF2 HF1

Currently using Surpac by loading drill holes, surface and solids and viewing on section using planes. A large number of layers are loaded with surfaces (-20) and 15 layers with solids. The drill hole database is not that large

I am frequently getting Access Violation errors (ticket has been logged) such as that illustrated below, and would like to know what the primary cause is? Could my system specs be insufficient? Are there any system settings I can tweak?