Anyway, I [pushed to Try](https://treeherder.mozilla.org/#/jobs?repo=try&revision=8ffce9e099a166f9e7ea0d7f5a5639263dfcedfc) the removal of the **fcp** from Rap-Cr tasks, to consolidate my findings.
Bug 1554964 Comment 5 Edit History
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Anyway, I [pushed to Try](https://treeherder.mozilla.org/#/jobs?repo=try&revision=8ffce9e099a166f9e7ea0d7f5a5639263dfcedfc) the removal of the **fcp** from Rap-Cr tasks, to consolidate my theory.