QB Issue Resolution:
I found a solution that seems to works – Switch to multi-user mode (This is done from the File menu and follow the prompts) then switch back to -Single user mode..
Resolution for Issue 'Why does Automatic Backup fail and only creates a 12kb temp file when you “X” out of QB ?' available: Yes (Solved).
Source: Intuit Community forum.
Why does Automatic Backup fail and only creates a 12kb temp file when you “X” out of QB ?: this 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 issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.Support for 12 kb
Quickbooks Repair Pro will resolve it efficiently and affordably. Guaranteed resolution of your issue, or you pay nothing!
Error Recovery for 12 kb [Canada]
E-Tech is the #1 Quickbooks data migration and Conversion service provider.
Additional Support Options: