Do you happen to use either of the Quicken companion apps (Quicken Mobile or Quicken on the Web)? If not, then next, I suggest that you turn off mobile sync to see if that may help. Doing so, may not fix the issues that have already occurred, however, it may help prevent these issues from reoccurring.
Please follow the instructions provided below in order to do so.
Phil in Lorain said: Hi Anja. thanks for your quick response. I do not have Sync turned on nor do I use the mobile or web apps.