The standard OpenPLX bundles have breaking changes between version 0.24.2 and 0.25.0. Update all .openplx files in the project taking into account the following API updates:

Visuals.Materials.TextureMaterial has been removed and replaced with an import and a BaseColor trait. For example the following material in the old version:

const ChassiVisualMaterial is Visuals.Materials.TextureMaterial:
    path: @"visuals/ChassiDiffuse.png"

Would be replaced with:

import @"visuals/ChassiDiffuse.png" as ChassisDiffuse

const ChassiVisualMaterial is Visuals.Materials.Material:
    with Visuals.Materials.SurfaceFeatures.BaseColor
    base_color_map: ChassisDiffuse

Inline materials of the form:

Chassis is Physics3D.Bodies.RigidBody:
    chassis_visual is Visuals.Geometries.ExternalTriMeshGeometry:
        path: @"visuals/AlgoryxLunarCruiser_Chassi.obj"
        material becomes Visuals.Materials.TextureMaterial:
            path: @"visuals/ChassiDiffuse.png"

Would be replaced with:

import @"visuals/ChassiDiffuse.png" as ChassisDiffuse

Chassis is Physics3D.Bodies.RigidBody:
    chassis_visual is Visuals.Geometries.ExternalTriMeshGeometry:
        path: @"visuals/AlgoryxLunarCruiser_Chassi.obj"
        material becomes Visuals.Materials.Material with Visuals.Materials.SurfaceFeatures.BaseColor:
            base_color_map: ChassisDiffuse