RB960PGS not getting IPv6 address

I have a router for internet and I connected both a hEX PoE and a Windows PC to the router. The Windows PC is getting an IPv6 address:

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If I run the packet sniffer and stream the packets I can see the RA packets coming in on the Mikrotik’s ethernet port:

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And yet the Mikrotik doesn’t get an IPv6 address and I’m unable to ping any IPv6 address:

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What else can I check?