Investigate the recurring failure in the automated test that validates the subscription usage tally without SLA filters, checking for a regression of the previous fix or a pattern in related past filter issues to apply a permanent solution.

Context
The test_validate_tally_no_sla_count test is failing again. This test was previously investigated and fixed in SWATCH-3842, but appears to be experiencing new failures or regressions.

Acceptance Criteria

• Investigate the current test failure and identify root cause
• Determine if this is a regression of the previous fix from SWATCH-3842
• Review related SLA filter test fixes (SWATCH-3409, 3496, 3922, 3475) for patterns
• Implement appropriate fix or test stabilization