AVD with gradient fill not working?

[MentalPictures]

Hi,

I'm trying to export a lottie file from After Effects 25.1 with Body Moving.
It consists of a few animated shape layers with either 'fill' or 'gradient fill'.
The json file looks and works perfectly, the AVD/XML skips the layers which use "gradient fill".
Do gradients not work with XML?
Any workarounds?