After our chat (thanks again btw), I re-installed the certs along with the chain certificate but still got the same error
Build server is unreachable: fetch failed: Error: unable to get local issuer certificate.
Do you think it would make a difference if I only installed the intermediate cert instead of the whole chain cert ( Filemaker seemed to accept it ok)
Would it help to see cert details?
And yes to confirm it was an internally created SSL