Pending assignment

[Bobacus]

Just pulled up my case information and I only have 2 auto's left in Chapter 13. Noticed this in claim summary:

Claim Number 017
Claim Type AUTOMOBILE
Claim Level 18
Comments PENDING ASSIGNMENT

What does this Pending Assignment mean?

Also,

In case summary there was "cancelation of Principal??

3/1/2012 MGC MORTGAGE INC 521539 Cancelation of Principal $151.80 ($11,783.12)
3/1/2012 MGC MORTGAGE INC 521539 Disburement Interest $51.48 ($11,731.64)
4/2/2012 MGC MORTGAGE INC 538556 Cancelation of Principal $458.86 ($11,272.78)
4/2/2012 MGC MORTGAGE INC 538556 Disburement Interest $96.76 ($11,176.02)
4/4/2012 MGC MORTGAGE INC 525686 Cancelation of Principal $301.75 ($10,874.27)
4/4/2012 MGC MORTGAGE INC 525686 Disburement Interest $50.59 ($10,823.68

Why would there be a cancelation of Principal??

Thanks...........