I am in the exact same boat.
Location: E-Grant Test Ready, Updated Date: Sep 21, 2021 for HISTORY 2.
and right above for HISTORY 1 it says - Location: In Transit, Office: Scarborough Citizenship Operations, Updated Date: 8 Oct 2021
The 10 page blank HISTORY is same for me as well - searching the forum, its quite common amongst applicants to see the blank pages as they are apparently redacting that information (no idea exactly why though)
Seems we are the few unlucky ones whose application files got deemed/chosen for TRANSFER due to Workload Redistribution

apparently this transfer takes a lot of time