Hi there,
Just as an aside, this community is amazing with all the help it has provided. I'm extremely grateful 
So, I have an expanding box that holds a section for academics to enter in units. Academics can add multiple delivery styles via a gallery, a wonderful solution that was provided by @v-xida-msft (located here: Help-with-visualizing-form).
I have all the elements in the expanding box, including the gallery, set to become visible on a variable change, trigged by clicking the "Add Unit" button, as you can see below:
However, when I load into the app for the first time, and go to add a unit, the delivery style gallery appears blank. If I collapse and expand the box, then it appears, which solves the problem very quickly. But I'm wondering if I'm missing something obvious. I have the page to reset the collection back to 0 with OnVisible. I tried changing that 0 to a 1, but it doesnt make a difference.
Any ideas would be greatly appreciated!
Matt
