Charactersheet: Something went wrong [when not logged in?]

It looks like some GraphQL component is not loading when I look at a public character sheet while not being logged in. The sheet works under my account, but when in incognito-modus, I get the error on the left hand bottom.

3hslfa115cjit.js:1 error updating character CombinedError: [GraphQL] field 'updateCharacterV2' not found in type: 'mutation_root'
    at D (3ka7tn3ypze-z.js:1:49776)
    at 3ka7tn3ypze-z.js:1:52009
I @ 3hslfa115cjit.js:1
1f5d68fa-3771-448e-8958-03462041d398:1 The resource https://app.demiplane.com/_next/static/media/spinner.2q2fivai9zn8m.svg?format=svg&width=48 was preloaded using link preload but not used within a few seconds from the window's load event. Please make sure it has an appropriate `as` value and it is preloaded intentionally.
1f5d68fa-3771-448e-8958-03462041d398:1 The resource https://app.demiplane.com/_next/static/media/spinner.2q2fivai9zn8m.svg?format=svg&width=48 was preloaded using link preload but not used within a few seconds from the window's load event. Please make sure it has an appropriate `as` value and it is preloaded intentionally.