Today I was using LinkedIn and the webpage wasn’t working. When I refreshed it they had changed the UI. Now there is not the All Activity showing under your profile profile picture.
So I had to manually go to the old URL for that. For me that is: https://www.linkedin.com/in/[your-username]/recent-activity/all/ (The your-username) is your public URL name.
I assume that LinkedIn did this to encourage people to use its native tool to publish posts rather than use their API to copy content from your website like I do. They also rate your posts higher when you use the native tools.
Microsoft is not making customer friendly things here. I think they are causing their customers to hate them. I know that if there was an option from LinkedIn many people would use it.
The most charitable thing I could say is this is just MS bug. Seem to be many bugs in the MS house lately.