Twitter post failure

My posts to Twitter using Adobe Xpress scheduler are failing. WHen I click the link in the email informing me of the failure, I see this message: 

As this technical issue is less common, our team will need to look into this to identify what went wrong

When I click on the failed post in scheduler, I see this message:

We're having trouble loading your post right now. This could be the result of a weak internet connection, or because this post has been deleted. If this keeps happening, try refreshing the page. Apologies for the inconvenience. 

I can load other successful posts with no problem, so there is nothing wrong on my end. I've been using Xpress for about a week or so with no problems. Is anyone else seeing this problem? Thoughts?

I was able to go to Twitter and successfully make the post.