PKCS12-cert stopped working for me after a renewal from LE after 01/26/24.

I was for years converting to PKCS-keystore with

openssl pkcs12 -export -inkey /etc/letsencrypt/live/mydomain/privkey.pem -in /etc/letsencrypt/live/mydomain/fullchain.pem -out /opt/xeams/config/xeams.p12 -name xeams -password pass:mypassword

Not opening my https-port, no error in xeams.log though. It even positively stated that "port was brought online". I could not find any error in the logs.

Using the keytool for keystore import brang up the same issue. Had to convert back to JKS-format. Could it be the reason it stopped working with ECDSA-keys in the recent builds?