Web3 Access FirebaseError: Missing or insufficient permissions

We are trying to integrate fireblocks web3 access with algorand through WalletConnect v2.

We are getting the session open, but the Web3Acces tab in the sandbox is stuck on loading. On the client we are getting the error:
Wallet was not initialized correctly.

Our settings:

export const ALGORAND_CHAINS = {
  mainnet: 'algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k',
  testnet: 'algorand:SGO1GKSzyE7IEPItTxCByw9x8FmnrCDe',
  betanet: 'algorand:mFgazF-2uRS1tMiL9dsj01hJGySEmPN2',
}
export const namespaces = {
  requiredNamespaces: {
    algorand: {
      methods: ['algo_signTxn'],
      chains: [ALGORAND_CHAINS.testnet],
      events: [],
    },
  },
}

The console in fireblocks sandbox shows this error:
Uncaught Error in snapshot listener: FirebaseError: Missing or insufficient permissions