# Incompatibility or Security preventing UI rendering and Calling API **URL:** \ **Category:** Gemini API\ **Tags:** api, gemini\ **Created:** [October 12, 2025, 9:17am UTC](https://discuss.ai.google.dev/t/incompatibility-or-security-preventing-ui-rendering-and-calling-api/107346 "2025-10-12T09:17:54Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![David\_Cullen](https://d1dlmcr85iqnpo.cloudfront.net/user_avatar/discuss.ai.google.dev/david_cullen/32/34001_2.png) [@David\_Cullen](https://discuss.ai.google.dev/u/David_Cullen)\ **Post date:** [October 12, 2025, 9:17am UTC](https://discuss.ai.google.dev/t/incompatibility-or-security-preventing-ui-rendering-and-calling-api/107346/1 "2025-10-12T09:17:55Z")
​"I am reporting a critical failure in the **code preview/collaborative app feature** on my **Pixel mobile phone**. 1. ​ **Rendering Crash:** Every single-file web application (React, HTML/JS) created in the chat results in an **immediate white screen** upon clicking ‘Preview.’ The app fails to load the UI entirely. 2. ​ **API Blocking:** When I ran the app externally, the Text-to-Speech (TTS) feature failed with a modal error: **‘Failed to generate audio. The API may be unavailable or blocked.’** (Error screenshot attached/referenced). ​This suggests a severe incompatibility or security restriction within the mobile Gemini interface is blocking both UI rendering and necessary API calls." ---
**Author:** ![Mahesh\_Sutar](https://d1dlmcr85iqnpo.cloudfront.net/user_avatar/discuss.ai.google.dev/mahesh_sutar/32/31644_2.png) [@Mahesh\_Sutar](https://discuss.ai.google.dev/u/Mahesh_Sutar)\ **Post date:** [December 3, 2025, 2:44pm UTC](https://discuss.ai.google.dev/t/incompatibility-or-security-preventing-ui-rendering-and-calling-api/107346/3 "2025-12-03T14:44:54Z")
Hello welcome to the Forum!! Just confirming that the Rendering Crash is working on my end ! Could you please elaborate more about the API Blocking issue? could you possible to share screenshot Thanks!