Thank you for your support. This did not resolve the issue.
Please see a video below of the issues after making the suggested change.
1- Regardless of which discount is chosen, the price in the mini-cart popup does not reflect the discount.
2- My Cart screen, the discount tier is reset, so customers must re-choose the discount they previously selected. Additionally, the price does not automatically update once on the My Cart screen if a customer switches subscription tiers.
3- There is no update cart option, preventing a new tier from being selected and the price increasing as expected.
https://www.loom.com/share/0fcb369be247422cb6b9b7d7a1eb9b7a