File Submission bug ?

Has anyone noticed CIS’s file submission bugs ?
For example I’m scanning malware pack and CIS submits unknown files, but the percentage goes from 0 to 20 and then restart from 0 to 4 and then from 0 to x … But the problem is that files are not submitted the state stays as “Pending” and some of them it’s “Uplauding” … Please can you guys check this ?