I am in a few private groups on Facebook and several of us have tried to reach out to Intuit about this issue. Apparently they’ve been closed for a few days. I’ve reported it and you Can too.   I’ve demonstrated how to do this in the video:  

Resolution for 'account on save issue: 'Why doesn’t “disconnect this account on save” appear?' available: Yes.

The account on save 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 account on save issue yourself by looking for a resolution described in the article. If it is a complex account on save issue or you are unable to solve the issue, you may contact us by clicking here or by using other account on save support options.

For more information about resolving issues related to account on save in Quickbooks/QBO or to get support for the issue 'Why doesn’t “disconnect this account on save” appear?', click the link below: