# Component View WebGL video flicker

**URL:** <https://devforum.zoom.us/t/component-view-webgl-video-flicker/59246>\
**Category:** Web\
**Created:** [October 22, 2021, 11:35am UTC](https://devforum.zoom.us/t/component-view-webgl-video-flicker/59246 "2021-10-22T11:35:33Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![daniel2](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/daniel2/32/8619_2.png) [@daniel2](https://devforum.zoom.us/u/daniel2)\
**Post date:** [October 22, 2021, 11:35am UTC](https://devforum.zoom.us/t/component-view-webgl-video-flicker/59246/1 "2021-10-22T11:35:33Z")

</div>

**Description**  
The new Component View of the WebSDK only features a speaker view (at least in macOS Safari).  
Joining a meeting with multiple participants with video on, it can start to flicker between the different participant’s videos.

**Browser Console Error**

```auto
[Error] WebGL: INVALID_OPERATION: uniform1i: location not for current program
	uniform1i
	(anonym funktion) (1504_js_media.min.js:1:193163)
	(anonym funktion) (1504_js_media.min.js:1:341522)
	(anonym funktion)

```

and

```auto
[Error] WebGL: INVALID_OPERATION: uniform4f: location not for current program
	uniform4f
	(anonym funktion) (1504_js_media.min.js:1:194405)
	(anonym funktion) (1504_js_media.min.js:1:341522)
	(anonym funktion)

```

and

```auto
[Log] fps error (1504_js_media.min.js, line 1, x28)

```

**Which Web Meeting SDK version?**  
2.0.0

**Device (please complete the following information):**

- Device: iMac
- OS: macOS 11.6
- Browser: Safari
- Browser Version 15.0 (16612.1.29.41.4, 16612)

**Additional context**  
I minimized and then went back to speaker view. Then the bug appeared.

---

<div class="post-metadata">

**Author:** ![MaxM](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/maxm/32/42303_2.png) [@MaxM](https://devforum.zoom.us/u/MaxM)\
**Post date:** [October 26, 2021, 1:15am UTC](https://devforum.zoom.us/t/component-view-webgl-video-flicker/59246/2 "2021-10-26T01:15:54Z")

</div>

Hey @daniel2,

Thank you for reaching out to the Zoom Developer Forum. For the best performance, please make sure that you are using Chrome and you’ve followed our guide on [Improving Web SDK Performance](https://marketplace.zoom.us/docs/sdk/overview/improve-performance).

Let me know if that helps.

Thanks,  
Max

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/6/1/614bdd549b610bbaa46ff934617683a02bdaa03c.png) [@system](https://devforum.zoom.us/u/system)\
**Post date:** [November 25, 2021, 11:16am UTC](https://devforum.zoom.us/t/component-view-webgl-video-flicker/59246/3 "2021-11-25T11:16:47Z")

</div>

Closed on November 25, 2021, 11:16am UTC

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