Thank you for taking the time to write a review! I must point out some misinformation: macOS (specifically the Metal rendering API) is fully compatible. Render Graph (Unity 6) is not. In the description extensive compatibility details are linked. Right below that it re-states that this asset supports Unity 2021 through 2023 (even in the thumbnail image). You have evidentially imported this into Unity 6, which harshly goes against the grain. Unity 6 and preview/alpha versions of Unity do not fall within the supported scope. Warnings have been placed into the inspector UI as a last resort to inform you that is not supported. A degree of due diligence is expected before purchasing so that I may have the chance to properly inform you, and unwelcome surprises are something I certainly aim to avoid. Please do refrain from withholding a fair rating as a means of eliciting a response as it is perceived as coercion. This is counter productive and is against Unity's community guidelines and may warrant the removal of your review. If you could modify your review, that'd be most appreciated!

Happy to hear the integration into your project was smooth!

Why indeed? 99/100 times this is because of a user error. Given the context and vague information, I expect this is no exception. In all seriousness, please refrain from using the review section for requesting support. This is against community guidelines and subjects a review to removal, which in the end achieves nothing but frustration for both you and myself. You can find a link to the documentation, support contact and forum thread on this very page. This asset is subject to automated tests to root out any potential shader/script compile errors, before it is published to the asset store. It is extremely unlikely something is actually broken. If there truly is a critical error, please feel free to reach out, so this may be corrected or clarified.