Latest Posts Blocks don't retrieve content reliably

[maddisondesigns]

Issue Overview

The Latest Posts block don't always retrieve the Latest Posts.

I had a page with 2 Latest Posts blocks (image below), and when I tried to edit the page, none of them showed any content.

I also had a page with 6 Latest Posts blocks (showing the different options such as Grid, List, Wide etc). Out of 6 Blocks, 3 showed content and 3 didn't.

Steps to Reproduce (for bugs)

1. Insert multiple Latest Posts blocks into content and save
2. Close page
3. Edit page with Latest Posts Blocks

Expected Behavior

Latest Posts Block should always show content when editing the page

Current Behavior

Latest Posts Block don't reliably retrieve content

Gutenberg 2.7.0
Firefox Quantum 59.0.2 (64-bit)
WP 4.9.5

[pento]

Thanks for the bug report, @maddisondesigns!

I'm able to reproduce the same behaviour, there seems to be a race condition somewhere in the API response handling. I'll have to do a bit more digging to see what's going on.