BubbleUpnp can't see LMS 7.9.3 on my network

I use LMS in conjonction with BubbleUPnP to play my Win 10 PC Library on my phone and a Yamaha Musiccast player (WXA-50). Since the upgrade to LMS 7.9.3, the server is not visible on BubbleUPnP. I restarted my router (a Google Wifi with two pucks) without success. LMS continue to work perfectly on a Squeezebox Touch in an another room with the remote and iPeng . Is it possible to recover the use of LMS on BubbleUPnP?
Thank you.