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Custom GPT: “Content failed to load” when switching models

OpenAI Developer Community April 20, 2026
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@BradWyatt, Ahh got it, that helps. Sounds like you’re hitting one of those broader “ChatGPT error/loading” edge cases. What you’re seeing lines up with known troubleshooting patterns for site failures during actions like model switching. The common thread is usually something breaking in the session or blocked resources. Quick recap of what’s worth trying: * Hard refresh the page (Cmd/Ctrl + Shift + R) or force reload the desktop app * Sign out and back in * Clear cookies/site data for chat.openai.com * Disable extensions or blockers * Try incognito, a fresh profile, or another browser * Turn off VPNs or security filters * Switch network/device If none of that helps, it’s probably deeper than a local setup issue. At that point, grabbing console logs + a HAR file with timestamps and sending it to support@openai.com is the best way to get it properly investigated. -Mark G

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