HTML Edge 14 is not playing .swf files via https if there are certificate errors

We faced with this problem after Win 10 Anniversary update. We are using flash on our site as cross-browser solution for recording and playing audio. In Edge 13, Chrome, IE 11, older versions of IE, FF this works. But in Edge 14 flash content is not played. We see “Movie not loaded” in properties of flash component. This issue does not happen if flash content is loaded via http. But when flash content is loaded via https it only works if there are no certificate errors. In our case it was:

1. cn name mismatch. In lab we often use IP address to access server. Server’s certificate is generated and issued to server’s FQDN. This causes net::ERR_CERT_COMMON_NAME_INVALID error.
2. Our customer provides it’s own CA Root Certificate. It is not known by Windows by default and this causes net::ERR_CERT_AUTHORITY_INVALID error.
   We were able to work around this problem by accessing server via FQDN and manually adding CA Root Certificate to trusted store on Client’s PC. But we concerned that this issue only appears with Edge 14.