QB Issue Resolution:

Once the invoice is saved you have to go back to the original transactions and mark them as billable.

Resolution for Issue 'I created an invoice using time/cost and selected amounts that should not have been billed yet? How do I get those amounts back into time/cost for the next invoice?' available: Yes (Solved).
Source: Intuit Community forum.

I created an invoice using time/cost and selected amounts that should not have been billed yet? How do I get those amounts back into time/cost for the next invoice?: 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 amounts back
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Error Recovery for amounts back [Canada]
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