I'm sorry we cannot reproduce that on our side. See screenshot. 

Pleaes disable all third party plugins on your website, switch to the default theme and see if the issue persists. 

I tested on demo! Create a group and add really long description! Now after you create a group a post in the newsfeed will appear with same description that is cut-out but doesn't have see more!

Please provide screenshot of the issue. 

Please take a look!

There was never such a functional in the default software Marcus, this is not a bug what you want to achieve is considered as a custom code modificaiton. 

Man that post really looks bad! By default a user will look for see more button :)

Thanks buddy anyways! Love ya!

I talked to the product designers they said it's a reasonable suggestion, I will pass it to devs, no exact time when it's going to be implemented. Thanks.