Inferno Export exportVDB() crashes if operator is not selected

[Mahiro]

tyFlow version: 2.101
3ds Max version: 2026

I can execute an Inferno VDB export with MAXScript using:

(getNodeByName "tyFlow001").Event_001.Inferno_Export.exportVDB()

Steps to reproduce:

1. Create a tyFlow object with a Birth Inferno operator and an Inferno Export operator.
2. Configure the Inferno Export operator so that exporting from its UI works correctly.
3. Select the Inferno Export operator in the tyFlow editor.
4. Execute the MAXScript command above. The VDB export works correctly.
5. Select another operator, or reopen the .max file so that no operator is selected.
6. Execute the same MAXScript command again.

Result:

3ds Max reports an EXCEPTION_ACCESS_VIOLATION inside tyFlow_2026.

The operator selection is not restored after reopening the .max file, and I cannot find a MAXScript method for selecting an operator.

Is exportVDB() intended to work without the Inferno Export operator being selected?

Is there a supported way to execute Inferno VDB exports from Deadline, the command line, or another automated process?

[tyFlow]

No, it's not intended to only work when selected...

I can repro here and will look into getting this issue fixed.

[Mahiro]

No, it's not intended to only work when selected...

I can repro here and will look into getting this issue fixed.

Thank you for confirming the issue and looking into a fix. I really appreciate your help.