actions not allowing POST method , Error: 405 POST method not allowed

[xmlking]

Describe the bug

I am using svelte-forms-lib which expecte to provide onSubmit callback function to POST JSON data to backend endpoint

+page.svelte

	import { createForm } from 'svelte-forms-lib';

const formContext = createForm({
		initialValues:  item,
		validationSchema: policySchema,
		onSubmit: (submittedValue) => {
			savePolicy(submittedValue);
		}
	});

	async function savePolicy(form: Policy) {
		try {
			// console.debug('savePolicy form', form);
			// await policySchema.validate( item, {abortEarly: false})

			const response = await fetch(`/dashboard/policies/${item.id}?/create`, {
				method: 'POST',
				headers: {
					Accept: 'application/json',
					'Content-Type': 'application/json'
				},
				body: JSON.stringify(form)
			});

			if (!response.ok) {
				// or check for response.status
				let { status, message } = await response.json();
				throw new CustomError(status, message);
			}

			await goto('/dashboard/policies');
		} catch (err) {
			console.error('save error', err);
			error = err;
		}
	}

after switching page endpoint to new action, I cannot POST to dashboard/policies/${item.id}?/create any more.
keep getting 405 POST method not allowed error

+page.server.ts

export const load: PageServerLoad = async ({ params } : RequestEvent) => {
}
export const actions = {
	create: async ({request}: RequestEvent) => {
        }
       delete: async ({params}: RequestEvent) => {
      }
}

Reproduction

see above

Logs

No response

System Info

Browsers:
    Chrome: 105.0.5195.102
    Safari: 16.1
  npmPackages:
    @sveltejs/adapter-auto: 1.0.0-next.71 => 1.0.0-next.71 
    @sveltejs/adapter-node: 1.0.0-next.88 => 1.0.0-next.88 
    @sveltejs/adapter-static: 1.0.0-next.42 => 1.0.0-next.42 
    @sveltejs/kit: 1.0.0-next.478 => 1.0.0-next.470 
    svelte: 3.50.1 => 3.50.0 
    vite: 3.1.0 => 3.1.0

Severity

serious, but I can work around it

Additional Information

[Conduitry]

As described in the issue template, we need a minimal clonable reproduction repo.

[Rich-Harris]

Closing as no repro was provided