Nextcloud and local access when IPV6

Hi, i recently activated IPv6 on my router for both LAN and WAN and i noticed that it resulted in nextcloud being unreachable on LAN via the android app…

It seems to be a bug between IPv6, nextcloud and its environnement (see this issue) but some have debugged it… Has anyone had the same problem ? Is there anything to do server side or just wait for an update ?