Possible list damage, try edit>resort list with your chart of accounts open, if that doesn’t do it run file>utilities>verify data and rebuild data.
Resolution for 'accounts open issue: 'why does check register and write checks show a different balance' available: Yes.
The accounts open issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the accounts open issue yourself by looking for a resolution described in the article. If it is a complex accounts open issue or you are unable to solve the issue, you may contact us by clicking here or by using other accounts open support options.
For more information about resolving issues related to accounts open in Quickbooks/QBO or to get support for the issue 'why does check register and write checks show a different balance', click the link below: