Hello,
I've been using the wplms woocommerce plugin with price variations in 3.9. Now I've updated to WPLMS 4, and I've detected that it isn't working as it should. I've imported the demo, but as you can see in this image, aside from the variations the style isn't completely correct (see the stars, and the last update field vs students enrolled field).
If I have the variations configured to show in a popup, they don't show. If I disable that option, the menu shows, but with this style, and no matter which price you select, it doesn't work. Once you press the take this course, it takes the lowest price, but without any of the variations configured.