Memory leak since 1.15.x on 300+ Plex Server Instances

It’s using more and more memory and my NAS become completely unresponsible in less than one hour. Only way for me to get the RAM free again is to disable the DLNA Server.

I have a Denon AVC-X3700H and I want to directly stream my plex organized music from my android phone(s) to the device. Actually I can do this only by enabling DLNA server to make my Plex Media Server available in the Heos App. Since I cannot play my Plex playlists and there’s the DLNA server leak this is not a solution for now.
There’s already a feature request for better Integration with HEOS:

I hope that Heos support can be added in future like already done for Sonos system. This way I can build a great Heos system in my house in combination with Plex. Also I wouldn’t need the DLNA Server as a workaround.
Maybe you can give me an info if there is actually any consideration on Plex side for better HEOS support. Thanks in advance!