Sequoia VM fails to start after indeterminate amount of time

[twstokes]

We've observed a host failing to start Sequoia VMs after ~16 days of uptime. Starting a Sonoma VM on the same host in the same state worked fine.

• Host: Sequoia 15.3.2
• Guest: Sequoia 15.3.2

When the host was inspected there were 9 "Virtual Machine Service" processes running, presumably hung from trying to start previous VMs.

• Memory was fine
• Storage was fine
• Force-quitting the 9 processes had no effect
• Restarting hostmgr-helper had no effect

Ultimately restarting the host resolved the issue.