On the dapp side we see this log: “hook.js:608 The connected wallet is using a deprecated chain ID for Solana. Please, contact them to upgrade. You can learn more at namespaces/solana/caip10.md at main · ChainAgnostic/namespaces · GitHub”
From my research, this post from June on the Fireblocks community (How can I connect a Solana staking dApp to Fireblocks Sandbox via WalletConnect and sign transactions? - #4 by Wilfred) says that the CASA chain id standard used by the walletconnect adapter is not supported. How are other dapps supporting Fireblocks Solana connections with Walletconnect?