Nest review for Shopify Bundles

Bundles that I've created, were initially working, suddenly without any apparent triggers begin showing 0 inventory/ availability, even though their constituent products are all in stock. If I go and edit the bundle, by removing a product, saving, and then re-adding the same product, and re-saving, then suddenly it shows the inventory again. It's always been doing this randomly since I installed it I noticed, but now, having been to busy to check in the last few months, I just discovered it was the case with all of the bundles in my shop. The impact being that these last months, no one could buy these products from us online.