Most likely. The issue with attachments not working is something we've seen on other sites that were moved to the cloud, so I'm sure that's what's going on here as well.
We did expect to see some glitches along the way, so the migration team has been keeping track and are looking for a fix. It's a pretty complicated process! One of my colleagues has been offering a great analogy for this. He had read somewhere that changing servers is a bit like picking up an active Monopoly Board and trying to move it from one table to another - as careful as you are, some of the pieces are probably going to get knocked over or shuffled around a bit. In our case, we just need to find out how things have shifted so that our team can figure out how to put them back. Hopefully they will get everything back on track soon!
Cheers,
Erik