Hi Netgear,
Could you try using underscore ( _ ) instead of hyphen ( - ) in the vlan names. I see one vlan name "dummy_vlan" in this snip that you shared. In case modifying the name works, you can try applying the same trick with the rest of the config as well.
In case it does not work, please share outputs and full config changes so that we can take a look.
Hope this helps 🙂
Please mark this post as "Accepted Solution" if this helps you solve your query.
Kudos are always appreciated.