This has been happening for the last several days.
MUCH more info needed in order to help you.
What Q product are you running and what VERSION of that product? This info is at HELP, About Quicken.
What type(s) of account(s) is this happening in?
What Financial Institution(s) hold those account(s)?
And, no, I'm not seeing this happening in my 12 accounts across 4 financial institutions.
It is happening to my credit card accounts from Chase and Citi. I use Quicken Classic Deluxe
I have 2 cards from Chase and 1 from Citi … and I'm not seeing this. I'm likewise on R68.31 and my different product shouldn't matter re: this.
SO, I have to suspect Q data file corruption.
Have you tried taking a backup (just in case) and then doing FILE, "Validate and Repair file", then checking "Validate File" and OK?
BUT, it's possible that even with corrected data corruption, a Validate might not repair this. So, after the Validation completes, check the status of the transactions and you might have to just re-reconcile the accounts using the most recent paper statemen.
Do you use Sync to Mobile/Web?
If so you might try with it off for awhile.