We're not aware of any such issue so if you can find concrete and repeatable steps to make it happen again that would be great to know. My first concern would be about there being 2 render nodes and switching between them frequently (which is fine in theory, it can just be confusing). This could easily result in confusion between the render nodes. But if the crop was not enabled in *either* of them, then that's clearly not the explanation.
Send us more info if/when you can.
- Oshyan