Unable to send transaction on specific chain with wagmi

[romanlv]

Our web3 supports multiple chains, and for browser extension wallets, correct chain can be switched to with useSwitchNetwork wagmi hook.

With Rainbow mobile wallet (through WalletConnect), it fails to switch chain using wagmi hook ('Missing or invalid. request() method: wallet_switchEthereumChain' #4924). As mentioned in related ticket

... rainbow shows all of a users assets across all supported networks so we don't fully support wallet_switchEthereumChain & wallet_addEthereumChain on mobile.

If I skip network selection step, it attempts to send transaction to first network in the list (Arbitrum One instead of Base Sepolia in my case). I don't see a network selector anywhere in the mobile app.

How to fix this problem? Is it even possible to send txn (mint) using Rainbow wallet?

Note: i'm using wagmi 1.x (usePrepareContractWrite/useContractWrite) but tried with wagmi 2.x, and run into the same issue.

[romanlv]

seems to be a problem with testnets only

I can see this comment #4960 (comment), does it mean that it's not possible to make it work with testnets? (e.g. Base Sepolia)

[romanlv]

confirmed: Rainbow mobile does not support any testnets, it's able to swtich to other mainnets