Try:
1. Disable privacy extensions — uBlock, Privacy Badger sometimes block image proxies
2. Clear cache and refresh page
3. Internet connection stable?
4. Email images — some emails (GitHub, Railway) used external images that need to go through Senly's image proxy. The whitelist was recently expanded; refresh the inbox to reload.
5. CDN outage — during global CDN outages (rare), external images may not load. Wait 5-10 min.
Logos in your agency settings not loading? Try uploading them again (Admin → Settings → Identity).