When the label of the connected EntityType is not like the appropriate machine name of the EntityType some routes does not working.
The problem also occurs if the page is multilingual because each language could have a different EntityType label.
Fixed
4.0
Code
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It's likely this issue predates Contrib.social: some issue and comment data are missing.
This is no longer an issue in the 4.x branch. It was fixed as part of making the module compatible with Drupal 9. I did a search for `getLowercaseLabel` and didn't find any instances in the 4.x code.
Automatically closed - issue fixed for 2 weeks with no activity.