I have noticed the pop out sidebar on the right of the product page (under buy box) that shows "Other sellers on Amazon" has stopped working. When You click it and it seems to appear for a split second then disappears.

I use chrome. I have checked two different computers - same.

But I noticed one important thing. I have two accounts, one for selling and the other private for shopping with Prime purchased. When I log in to sellercentral.amazon.co.uk/ then it automatically logs me in with the selling account on amazon.co.uk and on this account "Other sellers" doesn't work", but when I log in to amazon.co.uk with my private account with prime then everything works fine. It must be some problem with the settings

I've seen a few posts on this topic, but no one provides a solution...

Thank You in advance