Difference in gstr2a & comparison of liability declared &itc claimed

I have downloaded GSTR-2 A for every month since April-2018

then now on Return dashboard there is an option of Comparison of liability declared & ITC claimed where comparison is made between GSTR-1,GSTR-3B & GSTR2A. Now this amount of GSTR2A is different from the GSTR-2A report downloaded from the portal (for two months Sep-18+Dec-18)

Same thing with f.y. 2017-18 also. (July-17 & Aug-17 month GSTR2A amounts not matching with the amount of GSTR2A as mentioned in this Credit & liability statement)

So which amount to be considered for GSTR2A?

please advise.