Did you ever get a response? Are you on the free version? I'm having the same issue and I can't tell if it's the free version limitation or something else.
Would you mind trying to clear your cache following those steps, as well as trying with another browser and with an incognito window?
If this is still happening, I would recommend connecting with HubSpot Technical Support, as Support is included in your subscription and they will be able to provide real-time assistance for this matter, where you are able to share screenshots and further information about this