Migration from 26.0.2 to 26.2.5, with trustore certificates

I migrate from 26.0.2 to 26.2.5. I had to modify from KC_HTTP_ENABLED=true to KC_HTTP_ENABLED=false, due to
ERROR: Key material not provided to setup HTTPS. Please configure your keys/certificates, or if HTTPS access is not needed see the http-enabled option. If you meant to start the server in development.

I have tried several option, by setting :

ENV KC_HTTPS_TRUST_STORE_FILE=/opt/keycloak/conf/truststores/xxxx.crt
ENV KC_HTTPS_TRUST_STORE_TYPE=PEM

or
ENV KC_SPI_TRUSTSTORE_FILE_FILE=/opt/keycloak/conf/truststores/xxxx.crt
ENV KC_SPI_TRUSTSTORE_FILE_TYPE=PEM

No luck. I have verified that the certificate is in the correct place.

Any suggestions?