Scrolling longer topics on mobile doesn't show Related topics at the bottom

[NateDhaliwal]

Scrolling topics like:

1. Improved code block sizing & color scheme
2. Creating Custom Flag
3. How can I tell if a particular distribution of the Discourse client is free software?

cause the Related topics to not appear at the bottom of the page. This was reproduced on longer topics like the ones listed above.

Could also repro on:

1. Buttons for Scrolling to the Top/Bottom of Topics
2. Journal Plugin

I suspect it happens on topics with 20 or more replies.

Repro steps:

1. Enter a topic listed above, or any topic with >20 replies.
2. Use the topic timeline to scroll to the topic post.
3. Slowly scroll through the topic. You can read every post until you reach the bottom, or just scroll through the topic not too fast.
4. Upon reaching the bottom, the Related topics section disappears.

Screenshot:

I’m on an Android A14, using Chrome.

[Lilly]

Is this still happening? If so, this must be device dependent. I can’t repro on my iPhone 15 pro with any of those topics you posted.

[NateDhaliwal]

I can still repro this.
Things to note while repro-ing:

1. Enter the topic from the /latest.
2. Use the topic timeline to scroll to the top.
3. Scroll down slowly.
4. Have 0 unread topics and 0 new topics in your Suggested topic list (only Related should be the option).

[Moin]

I don’t think it’s limited to mobiles

Related topics missing after rereading a topic with more than 20 posts

Steps to reproduce: Visit a topic you have already read, or ensure in another way that you start at the bottom. The topic needs to contain more than 20 posts. You can use, for example, Refinements to search being tested on meta - #31 by volanar Jump to the first post because you want to reread the topic (you can use the timeline or the title). Read all the posts until you are at the last post again and notice that the related topics have vanished.

[Lilly]

Ok after chatting with Moin about it and playing with it, I have a repro where Related topics doesn’t show up, on desktop, Macbook with Chrome.

[sam (Sam Saffron)]

Yeah this is 100% reproducable, we will get it sorted.

Adding a medium priority on this, we will get it sorted over the next 4 weeks.

Closing this topic and will update the original by @Moin