Landscape AI Masks do not sync to mobile, work fine in Desktop and Web

When the new Landscape AI Masks were introduced, I immediately created a set of presets with the various elements (sky, architecture, vegetation, artifical ground, etc...) exited to use them on mobile.

I figured these would work similarly to the portrait masks, in that you can create the masks on desktop, save those as a preset, and then apply them on mobile where they are recalculated for the new image (even though mobile doesn't have those specific mask tools). For more info, here's Brian Matiash's video on doing just that:

https://www.youtube.com/watch?v=pGZy89HES6Y

Unfortunately, the Landscape AI masks do *not* work on mobile the same way. I verified that the presets do work on desktop as well as on Web, so my hope is that this will be updated in a later release for mobile. Currenty my workaround when on my iPad is to use Lightroom Web.