Capsule compatibility 0.8 vs Ardor3d Continuation

I have files created in Ardor3d 0.8 using Capsule. When I try to read them using JogAmp's Ardor3d Continuation 2025 release, I get the following error

        at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:123)
Caused by: java.lang.ClassNotFoundException: com.ardor3d.renderer.state.MaterialState

I know  there is no MaterialState in the Ardor Continuation along with no Quads, etc. Is there any way to read in old files or am I  stuck with 0.8?

Hello

This class exists in JogAmp's Ardor3D Continuation:
https://jogamp.org/cgit/ardor3d.git/tree/ardor3d-core/src/main/java/com/ardor3d/renderer/state/MaterialState.java

This class is in ardor3d-core-1.0-SNAPSHOT.jar.