In my mind, below would indicate it happens after few attempts (several as in probably at least 4 or 5).
Andy
https://sc1.checkpoint.com/documents/Jumbo_HFA/R81.20/R81.20/Important-Notes.htm?tocpath=_____2
In Maestro and Chassis environment, a boot loop may occur and after several boot attempts, the cluster member state is displayed as "detached" or "lost" in these scenarios:
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After downgrading from R81.20 Jumbo Hotfix Accumulator Take 89 or higher to Take 14 or below.
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After downgrading from R81.20 Jumbo Hotfix Accumulator Take 89 or higher to the GA (General Availability) version.