Quicken Mac Version 7.9.1 (Build 709.54540.100).
I'm experiencing a reproducible crash when loading the Investment Portfolio view. This crash occurs at the top level view (clicking "Investments"), the category view (clicking "Retirement"), or one specific account. Initially, I expected some type of data corruption, however restoring an older version of the file did not fix the issue. I'm confident that this issue did not exist at the time the prior backup was taken (I've gone back to early this month) and believe the issue started today.
Creating a new account and moving the transactions also did not resolve the issue (it followed the transactions). Other accounts are using the same securities as the problematic account, so it doesn't seem to be specifically linked to a particular security.
I've submitted several crash reports and the error report appears to be related to a division operation (abbreviated below):
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 Foundation 0x1968568b4 specialized static NSDecimal.integerDivide(dividend:divisor:maxResultLength:) + 2000
1 Foundation 0x19685b264 specialized NSDecimal.divide(by:roundingMode:) + 2432
2 Foundation 0x1969fa238 specialized __NSDecimalDivide(::::) + 60
3 Foundation 0x196719240 -[NSDecimalNumber decimalNumberByDividingBy:withBehavior:] + 160