# Topic timeline's current post number blank

**URL:** https://meta.discourse.org/t/topic-timelines-current-post-number-blank/372881
**Category:** Bug
**Tags:** mobile, topic-timeline
**Created:** [July 4, 2025, 7:15am UTC](https://meta.discourse.org/t/topic-timelines-current-post-number-blank/372881 "2025-07-04T07:15:37Z")
**Posts on this page:** 9
**Page:** 1

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### Author: ![NateDhaliwal](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/natedhaliwal/32/313494_2.png) [@NateDhaliwal](https://meta.discourse.org/u/NateDhaliwal)
#### Post date: [July 4, 2025, 7:15am UTC](https://meta.discourse.org/t/topic-timelines-current-post-number-blank/372881/1 "2025-07-04T07:15:37Z")

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Note: this happens on Meta.

On certain topics, once the topic loads, if you start scrollng down (or even if you don’t), the number showing which post you’re reading in the topic tomeline is not there, and only loads after a while (so the timeline looks like ‘/13’ instead of ‘3/13’.

This happens on topics long and short, and on mobile.

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### Author: ![sam](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/sam/32/102149_2.png) [@sam](https://meta.discourse.org/u/sam)
#### Post date: [July 7, 2025, 3:20am UTC](https://meta.discourse.org/t/topic-timelines-current-post-number-blank/372881/2 "2025-07-07T03:20:25Z")

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This is by design though. We have a debounce that only injects history when your browser settles?

@saquetim recently ported this off widgets to Ember, but I am not noticing anything different here with our behavior than what it was previously?

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### Author: ![NateDhaliwal](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/natedhaliwal/32/313494_2.png) [@NateDhaliwal](https://meta.discourse.org/u/NateDhaliwal)
#### Post date: [July 7, 2025, 3:21am UTC](https://meta.discourse.org/t/topic-timelines-current-post-number-blank/372881/3 "2025-07-07T03:21:51Z")

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The thing is, I only started noticing this fairly recently, and I believe still happened on a topic here and there yesterday or 2 days ago.

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### Author: ![sam](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/sam/32/102149_2.png) [@sam](https://meta.discourse.org/u/sam)
#### Post date: [July 7, 2025, 3:23am UTC](https://meta.discourse.org/t/topic-timelines-current-post-number-blank/372881/4 "2025-07-07T03:23:26Z")

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> [@NateDhaliwal](#):
>
> I only started noticing this fairly recently

Sorry, what is your expectation, that as you are scrolling the URL is constantly changing?

Maybe have a look at an older deploy, is it behaving any different?

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### Author: ![NateDhaliwal](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/natedhaliwal/32/313494_2.png) [@NateDhaliwal](https://meta.discourse.org/u/NateDhaliwal)
#### Post date: [July 7, 2025, 3:36am UTC](https://meta.discourse.org/t/topic-timelines-current-post-number-blank/372881/5 "2025-07-07T03:36:07Z")

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Apologies, perhaps I should clarify. Normally, when entering the topic, the topic timeline would show the current post. However, it’s blank and only appears after some time.

I will try to get a screenshot the next time I see it.

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### Author: ![sam](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/sam/32/102149_2.png) [@sam](https://meta.discourse.org/u/sam)
#### Post date: [July 7, 2025, 3:38am UTC](https://meta.discourse.org/t/topic-timelines-current-post-number-blank/372881/6 "2025-07-07T03:38:20Z")

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thanks, please do, not having luck reproducing this.

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### Author: ![NateDhaliwal](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/natedhaliwal/32/313494_2.png) [@NateDhaliwal](https://meta.discourse.org/u/NateDhaliwal)
#### Post date: [July 8, 2025, 9:04am UTC](https://meta.discourse.org/t/topic-timelines-current-post-number-blank/372881/7 "2025-07-08T09:04:34Z")

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Hi @sam , I managed to get a quick screenshot:

 ![A screenshot of a Twitter post discussing the embedding capabilities of WordPress, specifically focusing on the oEmbed API and potential workarounds for dimension issues. (Captioned by AI)](https://global.discourse-cdn.com/meta/original/4X/d/2/1/d217ca4d0f5ce77f3a1bb12d68156071441f47be.jpeg)

Some topics load fine, while some have this problem.

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<div class="post-metadata">

### Author: ![NateDhaliwal](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/natedhaliwal/32/313494_2.png) [@NateDhaliwal](https://meta.discourse.org/u/NateDhaliwal)
#### Post date: [July 9, 2025, 12:21am UTC](https://meta.discourse.org/t/topic-timelines-current-post-number-blank/372881/8 "2025-07-09T00:21:51Z")

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I have an inkling that if you enter topics and you’re not reading the last reply, then this will happen.

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<div class="post-metadata">

### Author: ![sam](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/sam/32/102149_2.png) [@sam](https://meta.discourse.org/u/sam)
#### Post date: [July 14, 2025, 5:07am UTC](https://meta.discourse.org/t/topic-timelines-current-post-number-blank/372881/9 "2025-07-14T05:07:20Z")

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Still having no luck reproing this
