Hi Scott,
I am able to upload images in the composer and publish them just fine. Perhaps you can elaborate more on your issue by providing us the steps and conditions to replicate your issue? Also some screenshot would help too. Let us know, thanks.

It's working now. I changed some settings earlier, and I think they are working now. Many thanks!

Hey Scott,

You are most welcome. Glad to hear that your issue has been resolved.

As a gentle reminder, kindly start a new thread if you have any other issue in the future so it will be easier for us to manage your inquiry. I will lock and mark this thread as resolved.