## Bug description

I have lost edit permissions to a [dashboard I created](https://app.posthog.com/dashboard/28987), despite still being listed as the owner of the dashboard

## Expected behavior

I should still be able to edit the dashboard

## How to reproduce

I noticed this problem after adding a new insight, but this doesn't appear to be the cause of the issue. I've duplicated the dashboard to restore access and adding a new insight didn't appear to cause the issue 

## Environment

- [x] PostHog Cloud
- [ ] self-hosted PostHog (ClickHouse-based), version/commit: _please provide_
- [ ] self-hosted PostHog (Postgres-based, legacy), version/commit: _please provide_

## Additional context

#### *Thank you* for your bug report – we love squashing them!

posthog/api/insight.py
import json
from typing import Any, Dict, Type
from django.db.models import QuerySet
from django.db.models.query_utils import Q
from django.utils.timezone import now
from django_filters.rest_framework import DjangoFilterBackend
from drf_spectacular.utils import OpenApiResponse
from rest_framework import request, serializers, viewsets
from rest_framework.decorators import action
from rest_framework.permissions import IsAuthenticated
from rest_framework.response import Response
from sentry_sdk import capture_exception
from ee.clickhouse.queries.funnels import ClickhouseFunnelTimeToConvert, ClickhouseFunnelTrends
from ee.clickhouse.queries.funnels.utils import get_funnel_order_class
from ee.clickhouse.queries.paths.paths import ClickhousePaths
from ee.clickhouse.queries.retention.clickhouse_retention import ClickhouseRetention
from ee.clickhouse.queries.stickiness.clickhouse_stickiness import ClickhouseStickiness
from ee.clickhouse.queries.trends.clickhouse_trends import ClickhouseTrends
from ee.clickhouse.queries.util import get_earliest_timestamp
from posthog.api.documentation import extend_schema
from posthog.api.insight_serializers import (
    FunnelSerializer,
    FunnelStepsResultsSerializer,
    TrendResultsSerializer,
    TrendSerializer,
)