All blocks showing Awaiting finalization

[abhath-labs]

Hi, We connected the explorer to run our parachain at https://polkadot.js.org/apps/?rpc=wss%3A%2F%2Ftestnet.bitgreen.org#/explorer, the explorer is completely synced and also updating new blocks as they are being produced. But the block details display Awaiting Finalization on all blocks as below

Just wondering if this has to do with the chain being a parachain or if its something to do with our config.
We have not modified anything except modify the url in the explorer-config yaml.