Submitted by Jeiwan, also found by cccz
A contributor wont get an NFT theyre eligible for if the payment is made through a payment terminal thats supported by the project but not by the NFT delegate.
A Juicebox project can use multiple payment terminals to receive contributions (JBController.sol#L441-L442).  Payment terminals are single token payment terminals (JBPayoutRedemptionPaymentTerminal.sol#L310) that support only one currency (JBSingleTokenPaymentTerminal.sol#L124-L132). Since projects can have multiple terminals, they can receive payments in multiple currencies.
However, the NFT delegate supports only one currency (JBTiered721Delegate.sol#L225):
When a payment is made in a currency thats supported by the project (via one of its terminals) but not by the NFT delegate, theres an attempt to convert the currency to a supported one (JBTiered721Delegate.sol#L527-L534):
However, since prices is optional (it can be set to the zero address, as seen from the snippet), the conversion step can be skipped. When this happens, the contributor gets no NFT due to the early return even though the amount of their contribution might still be eligible for a tiered NFT.
Short term, consider reverting when a different currency is used and prices is not set. Long term, consider supporting multiple currencies in the NFT delegate.
drgorillamd (Juicebox DAO) disputed
Picodes (judge) commented:
