HTTP/3 Connection Issue with Nginx 1.27.1 and headers-more-nginx-module

I encountered an issue while using Nginx 1.27.1 with the headers-more-nginx-module. When I added the following line to the "http" block in the global configuration file:

more_set_headers "Server: Microsoft-IIS/8.5";

I was unable to access the site using HTTP/3. The specific symptoms were as follows:

curl --http3-only https://my.domain -Ivi
Note: Using embedded CA bundle, for proxies (228633 bytes)
* Host my.domain:443 was resolved.
* IPv6: (none)
* IPv4: my.server.ip.address
*   Trying my.server.ip.address:443...
*  CAfile: D:\Scoop\apps\curl\current\bin\curl-ca-bundle.crt
*  CApath: none
* ngtcp2_conn_handle_expiry returned error: ERR_HANDSHAKE_TIMEOUT
* Failed to connect to ba7jcm.live port 443 after 10016 ms: Failed sending data to the peer
* closing connection #0
curl: (55) ngtcp2_conn_handle_expiry returned error: ERR_HANDSHAKE_TIMEOUT

Commenting out or removing the added line does not resolve the issue. Additionally, when I recompiled Nginx without the headers-more-nginx-module, it worked fine.

Could you please investigate this issue? Thank you!

Start by reproducing the failure with Nginx 1.27.1, HTTP/3, and headers-more-nginx-module using the shown curl --http3-only command and the more_set_headers directive in the http block. Compare the module-enabled and module-disabled builds to isolate the interaction. Done means identifying the cause and confirming that HTTP/3 connections succeed with the module enabled.