QB Issue Resolution:

This happens in a Multi-monitor system, if QB is not running on the Main Monitor.

This is a Known Issue and has been true for years of QB programs.

Resolution for Issue 'Hello, I cannot drill down on accounts in Reports such as Balance Sheet, P &L and Trial Balance. This was not a problem yesterday. Could you please help?' available: Yes (Solved).
Source: Intuit Community forum.

Hello, I cannot drill down on accounts in Reports such as Balance Sheet, P &L and Trial Balance. This was not a problem yesterday. Could you please help?: 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 QB programs
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Error Recovery for QB programs [Canada]
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