Might this be a Potential Bug?

I have recently been playing Diablo 3 on the Xbox One.

I have recently come across an issue with the stash system within the newest Season. I barely have anything in it and I have been trying to store my Gems into my stash. It makes the noise that it has been done, however a notice comes up that it has been filled and I need more space. So I spend the money to upgrade my stash spaces. The money is used but the stash size remains the same. I have tried this over 20 times and nothing has changed. Nor am I able to store anything INTO my stash as it continues saying that all spaces are filled. Yet i look at the number of spaces and over half are still available.

This is not a secluded Issue either. My partner also reports having the same issue. She has also been online with some people and they also say they are having the issue.

Not only this, but my partner and her friends online are all saying that an Error has been showing up when they try to connect with each other in the game.