Multisite capability?

Not having much luck using it on multisite. I have just activated it for a single site and it seems to get very confused with the file sizes…

https://www.diigo.com/item/image/2c6cw/md4j

I deleted everything from the upload directory and started again but it was still confused and even thought the file sizes are as specified, it wouldn’t use them as is, tried to resize them, and then started to mix the two sets of dimensions together.

Shame it looks like a really nice plugin and was exactly what I wanted.

https://wordpress.org/plugins/os-integration/