QB Issue Resolution:

ignore the beginning balance and reconcile as usual.  the offending entry should make itself visible by the time you finish reconciling.

Resolution for Issue 'My June Bank Statement has the correct ending balance. But when I go to do the July Reconciliation, the beginning amount is short $3,805.00. I followed QB help, NOPE.' available: Yes (Solved).
Source: Intuit Community forum.

My June Bank Statement has the correct ending balance. But when I go to do the July Reconciliation, the beginning amount is short $3,805.00. I followed QB help, NOPE.: 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 beginning amount
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Error Recovery for beginning amount [Canada]
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