# Video Pixelation / Green Blocks Issue

**URL:** <https://devforum.zoom.us/t/video-pixelation-green-blocks-issue/139444>\
**Category:** Meeting SDK\
**Created:** [December 10, 2025, 10:26am UTC](https://devforum.zoom.us/t/video-pixelation-green-blocks-issue/139444 "2025-12-10T10:26:19Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![kanojiya](https://avatars.discourse-cdn.com/v4/letter/k/f14d63/32.png) [@kanojiya](https://devforum.zoom.us/u/kanojiya)\
**Post date:** [December 10, 2025, 10:26am UTC](https://devforum.zoom.us/t/video-pixelation-green-blocks-issue/139444/1 "2025-12-10T10:26:19Z")

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**Android devices** on the participant side display the video with:

- Green blocks

- Pixelated video

- Frame tearing

- Distorted / broken frames

Other devices work perfectly fine.

**Scenarios Where Issue Appears**

### **1. Host camera ON (720p or SD stream)**

- Host is teaching with only camera ON

- No screen share

- Internet is stable on both sides

- Host video quality is good on mid/high-end devices

- But low-end devices show pixelation

### **2. Student device symptoms**

On affected devices, the video looks like:

- Green artifact blocks

- Mosaic/pixelated frame

- Video flickering or partial rendering