XF 2.2 Does not upload attachments

[RisteDimitrievski]

After i've migrated my mybb data to xenforo 2.2.0 i am unable to upload attachment. I don't know if that was caused by importer or just a software version bug or maybe i should chmod some folders?

 

[Paul B]

What errors or messages are received when attempting to attach something to a post?

 

[RisteDimitrievski]

What errors or messages are received when attempting to attach something to a post?

Nothing, just uploads to 100% then when on thumbnail you can see nothing before submitting topic.
And when you click submit, the attachment does not exist.