Doesn't happen to me.

You made no mention of the amount of time it's been happening to you in your initial post, so how are we to know? We are not mindreaders, and despite the blurb, eBay do not read or respond to board posts, so they don't even know of your complaint.

Try clearing cache and cookies, switching browsers and rebooting your computer. Assuming you're not using the app, in which case I cannot advise further. The app is an illconceived attempt at smartphone compatibility, which eBay obviously didn't get professionals to develop.