Editing posts removes line breaks

I couldn't find any topic about this issue so here it goes:

Every time I need to edit a post, every line break is removed, this is specially annoying when there's a lot of code in the post because I've to manually add every single line break...

Example post:

Trying to edit:


Also:
After I click "Save Changes" the changes are saved but I have to reload the page to exit quick edit mode, I believe it should exit quick edit mode automatically...

Thanks