Windows 10 Insider Dev fails to resolve DoH queries against BIND

Summary

I cannot get DNS over HTTPS in BIND to work with Windows 10 Insider Dev, whereas I have no problems with Unbound. Unbound returns the full chain for my letsencrypt tls certificate whereas BIND does not, which may explain it.

BIND version used

BIND 9.17.10-1+ubuntu20.10.1+isc+1-Ubuntu (Development Release) id:

Steps to reproduce

Install Windows 10 Insider (Dev channel) and attempt to resolve queries against a BIND DoH server configured with a letsencrypt (or similar) certificate.

What is the current bug behavior?

DNS resolution fails.

What is the expected correct behavior?

DNS resolution should succeed.