1.9.17

• Fixed: HTTP 429 responses no longer incorrectly mark credentials as invalid — only HTTP 401 triggers this
• Fixed: Token refresh is no longer attempted when API calls fail due to rate limiting or server errors
• Fixed: Added a 5-minute cooldown to check_creator_tiers to prevent repeated /oauth2/v2/campaigns calls on every admin page load
• Fixed: Tier dropdown refresh icon in post editor metabox was hidden when tier names were long