DLNA Issues Since OS5

I’ve had my WD MyCloud for about 4 years, mainly used to hold my music / movie collection with no real issues to speak of. I recently updated the firmware etc to OS5 and now having issues with specific devices. My LG Smart TV and Marantz AVR / HEOS see the drive but they cannot seem to access the public folders any more. I uninstalled and reinstalled Twonky and it worked okay again for a day and then back to the same issue.

I can still access the drive fine on my laptop and in KODI (running on an Xbox).

I’ve had a look back a few months on this forum and can’t see anything that is the same issue. Any help would be appreciated!

@Bungle1981
I take it you have a WD MY CLOUD device and not a My Cloud Home. The My Cloud Home does not use OS5 and is not included in the sub-forums. See image below. Click on, tap, or activate image to enlarge it.