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Unity3d

Can we connect XUMM Wallet with unity 3d
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How to add other asset(currency) than XRP in custom network(https://hooks-testnet-v2.xrpl-labs.com/)?

I want to add other asset than XRP like XGBL to XUMM wallet to test the minting functionality. External Sites does not allow these addresses since its custom and is testnet. How can I add any other asset?
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"Unable to verify payload signature" on some Android phones only.

So we have this weird saying "Unable to verify payload signature" only in some Android phones. My colleague has 'infinix X655C" Android phone with Android version 10. It keeps throwing this error when he tries to sign the transaction(works for login through). But if I try to sign the same transaction by importing the same account in my Android or IOS it works. So don't know what exactly is going on here? Error Image: [Whats-App-Image-2022-06-20-at-9-28-26-PM.jpg](https://postimg.cc/TpHDBqR7) Signing Img: [![Whats-App-Image-2022-06-20-at-9-28-26-PMa.jpg](https://i.postimg.cc/TwT6Z84s/Whats-App-Image-2022-06-20-at-9-28-26-PMa.jpg)](https://postimg.cc/kVYzbH9N) Payload Reference number: 34118a0d-2115-4131-a2b4-e7d930f4f7e9
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Error: Payload encoding error: Invalid type to construct an Amount

The payload creation for this json throws "Invalid type to construct an Amount" error. What is the format for Amount? ```{ user_token: '69002d91-8692-4ab2-8e7f-51d0a7d36082', TransactionType: 'NFTokenCreateOffer', txjson: { TransactionType: 'NFTokenCreateOffer', Account: 'rBaw9YZND7cDF1f2jQVE1bDsSZY1szv7fs', NFTokenID: '00080000C924488438D936EC938CCBD9D20F52AD732DF98B44B17C9E00000003', Amount: 100000000, Flags: 1, Destination: 'rKLYHZgkP3afTaBh9DyZZkq3B9n3wu9nyS', Owner: 'rKLYHZgkP3afTaBh9DyZZkq3B9n3wu9nyS' }, options: { submit: true, multisign: false, expire: 15, return_url: 'http://localhost:3001' } }``` [image.png](https://postimg.cc/tsY0mktX)
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How do we detect if the account was signed through a test/dev/main net?

So TransactionType: 'SignIn' is only a XUMM transaction, but there are some sites like Sologenic, XrpToolkit that detects if the account is a tes account and says its not activated. So how do we detect that the account is not activated when user tries to sign through a testnet or devnet or even through main net?
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