It would be great if this was clarified for all of your works. I've seen a couple of places where you told people "You are free to use our packs commercially as a part of your game, but you cannot, for example, sell them separately. " with no mention that this is for single use only. Also, for me, it's a deal breaker. I buy assets and add them to a library and use them, one at a time, as they are needed. Trying to track assets that are single use is a deal-breaker for me which is too bad because I like your SFX.