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Slew of ICMPv6 requests in my UFW logs from Docker containers

I have Docker installed on a Debian 10 server. I also have UFW on the server but I have the default setting where Docker manages its FW rules directly using iptables and UFW manages what I want (the stuff outside of Docker).

I am seeing a slew of ICMPv6 blocks in my UFW logs from my containers. I can’t figure out why or how to stop it.

Logs are available at Feb 21 09:18:38 hostname kernel: [ 5.504715] [UFW BLOCK] IN= OUT=br-e9c838462 -