sad to here that you have that many problems. Generally, we're trying to constantly improve the behavior of tooll and all including operators. Sometimes this breaks backwards-compatibility. Most of the time, fixing is easy because it's only one or two parts that needs tweaking.
Since 2.1 a lot of things changed:
- Tooll now uses hrd-rendering by default. This means that all image-buffers have 16bit color resolution. You can bypass this behavior by add a [SetColorResolution] operator at the top of your demo
- Some defaults now have more meaning-ful default-values that make it easier to understand what they are doing
- we adjusted SimpleSSOA, ReplicateFast and many other operators
- We also changed some details in the fbx-importer-implementation.
Should I have a look and try to find the breaking operators? I could use the released demo for this.