Variances in NFT data between testnet and devnet environments

NFT
1

I’ve noticed some weird stuff with NFTs on different networks. I minted the same NFT using the same smart contract on both devnet and testnet. But when I looked at the explorer, the testnet NFT was missing a bunch of info.

The devnet NFT had all the details like attributes, uris, and creator fields. But the testnet one was missing all that data. It seems like anything involving ManagedBuffers, ManagedVec, or ManagedAddress is just not showing up.

The transactions ran smoothly on both networks with no errors, so I’m suspecting an API issue. Has anyone else encountered this or know why the testnet might be omitting these important fields?

Here’s an example of the structs seen on each network:

// Devnet NFT (complete data)
struct DevnetNFT {
    string name;
    uint256 tokenId;
    string[] attributes;
    string[] uris;
    address creator;
}

// Testnet NFT (missing data)
struct TestnetNFT {
    string name;
    uint256 tokenId;
    // Missing attributes, uris, and creator
}

Any insights on why the testnet is not showing all this information?

2

hey there, isaac31! that’s some interesting stuff you’re seeing with the nfts. i’ve been playing around with nfts too and ran into some funky things myself. :thinking:

have you tried checking if the data is actually there but just not showing up in the explorer? sometimes the explorer can be a bit wonky, ya know? maybe try fetching the nft data directly from the smart contract on testnet and see if all the info is there?

also, i’m kinda curious - what tool are you using to mint the nfts? i’ve heard some minting tools handle data differently on different networks. maybe that could be part of the puzzle?

oh, and here’s a random thought - have you tried minting a super simple nft on testnet with just basic info? might help narrow down if it’s a specific data type causing trouble or something more general?

lemme know what you find out! this stuff is pretty fascinating, and i’d love to hear more about your nft project. what kind of nfts are you creating, anyway?

3

yo isaac31, that’s a weird one for sure. i’ve seen similar stuff happen before. might be worth checkin if the testnet explorer is just messin up. try querying the contract directly to see if the data’s actually there.

also, what version of the contract are you using? sometimes updates can cause funky behavior between networks. maybe try deployin an older version and see if it helps?

keep us posted on what u find out!

4

I’ve encountered similar discrepancies between devnet and testnet environments in my NFT projects. From my experience, this is likely due to differences in how the networks handle and display complex data types.

Devnet tends to be more forgiving and often shows a fuller picture of the NFT metadata. Testnet, being closer to mainnet conditions, might have stricter parsing or display rules for security reasons.

One workaround I’ve found effective is to flatten your data structure. Instead of using nested types like ManagedBuffers or ManagedVec, try serializing complex data into a single string field. This approach often results in more consistent display across networks.

Additionally, double-check your smart contract’s getter functions to ensure they’re correctly exposing all fields for external queries. Sometimes the data is present but not properly accessible. If the issue persists, it might be worth reaching out to the blockchain’s development team for insights into any known API discrepancies.