Strict SNI not working with letsencrypt-certificates

Hi, I try to implement a strict sni Header, but it does not work with acme-certificates, as it always displays: no certificate found with this sni. Anyone else having problems with this? Because in the docs there is not mentioned how to enable sni with acme certificates...please help...

As you didn't provide any details, config, yml, logs it's impossible to help :-p

sorry the issue is resolved. it was related to missconfiguration