I have a specific JT File that when loaded in JT2Go has this behaviour:
Some part nodes are disabled and greyed out. When clicked an "Inactive Structure Warning" appears. "Unable to select or change visibility of inactive structure."
The only way to activate these nodes are through model views.
When importing this JT in the JT Open Toolkit, how are these nodes tagged as inactive and deactivated as default?
Hard to tell without seeing the file but this could be a default layer filter setting. If a JT file has a default layer filter setting from the CAD system it will load based on that setting in JT2Go.