"Color Custom Weave" option in Weave Node for Sampler totally missing?

Using Sampler for cusom fabric dev and noticed the most recent version of sampler has a big issue. The "Color Custom Weave" tool is missing/broken. I don't get the typical import image or paint option when I toggle the option on. I get a blank drop down menue that does nothing...Anyone else experiencing this issue?

Using MacOS Monterey v12.4

Adobe Sampler v4.2.1

This bug has rendered the software useless to us...