# Closed caption endpoint (/closedcaption) lags sometimes

**URL:** <https://devforum.zoom.us/t/closed-caption-endpoint-closedcaption-lags-sometimes/22085>\
**Category:** API and Webhooks\
**Created:** [June 23, 2020, 12:02am UTC](https://devforum.zoom.us/t/closed-caption-endpoint-closedcaption-lags-sometimes/22085 "2020-06-23T00:02:46Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![sean-c](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/sean-c/32/3232_2.png) [@sean-c](https://devforum.zoom.us/u/sean-c)\
**Post date:** [June 23, 2020, 12:02am UTC](https://devforum.zoom.us/t/closed-caption-endpoint-closedcaption-lags-sometimes/22085/1 "2020-06-23T00:02:46Z")

</div>

I’m using the [/closedcaption](https://support.zoom.us/hc/en-us/articles/115002212983-Integrating-a-third-party-closed-captioning-service) endpoint for a 3rd closed captioning integration. I sometimes experience big lag in between subtitles - After I call the endpoint, It could take a few minutes before the corresponding subtitle response is returned to my zoom screen. When it dose return, all subtitle responses of calls in this period are returned all together to my zoom screen.

I did remember to increase the ‘seq’ val by 1 each time I called the endpoint with new text.

---

<div class="post-metadata">

**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\
**Post date:** [June 24, 2020, 7:53pm UTC](https://devforum.zoom.us/t/closed-caption-endpoint-closedcaption-lags-sometimes/22085/2 "2020-06-24T19:53:02Z")

</div>

Hey @sean-c,

Can you share the meetingUUID of a meeting that this issue happened?

Thanks,  
Tommy

---

<div class="post-metadata">

**Author:** ![sean-c](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/sean-c/32/3232_2.png) [@sean-c](https://devforum.zoom.us/u/sean-c)\
**Post date:** [June 24, 2020, 9:56pm UTC](https://devforum.zoom.us/t/closed-caption-endpoint-closedcaption-lags-sometimes/22085/3 "2020-06-24T21:56:12Z")

</div>

It happens to all my meetings.  
And here is someone else also having the same issue [Unpredictable delay before first CC message is displayed](https://devforum.zoom.us/t/unpredictable-delay-before-first-cc-message-is-displayed/21663)

---

<div class="post-metadata">

**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\
**Post date:** [June 25, 2020, 7:50pm UTC](https://devforum.zoom.us/t/closed-caption-endpoint-closedcaption-lags-sometimes/22085/4 "2020-06-25T19:50:36Z")

</div>

Hey @sean-c,

Since this issue is outside of the [Zoom App Marketplace](http://marketplace.zoom.us/), please reach out to [support.zoom.us](http://support.zoom.us), they will be able to better assist.

> [@Unpredictable delay before first CC message is displayed](https://devforum.zoom.us/t/unpredictable-delay-before-first-cc-message-is-displayed/21663/2):
>
> Hey @roy.ballantine, Since this is not actually apart of the [Zoom API and marketplace](http://marketplace.zoom.us/), please direct this question to [support.zoom.us](http://support.zoom.us), they will be able to better assist. slight_smile Thanks, Tommy

Thanks,  
Tommy

---

<div class="post-metadata">

**Author:** ![tommy](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/tommy/32/72769_2.png) [@tommy](https://devforum.zoom.us/u/tommy)\
**Post date:** [June 25, 2020, 7:50pm UTC](https://devforum.zoom.us/t/closed-caption-endpoint-closedcaption-lags-sometimes/22085/5 "2020-06-25T19:50:42Z")

</div>