Simulator runtime stuck "Deleting"

I have numerous simulator runtimes marked as "Deleting":

$ xcrun simctl runtime list
 == Disk Images ==
 -- iOS --
 iOS 18.0 (22A3351) - 036938A4-AAF7-4671-8880-8E381770E397 (Deleting)
 iOS 18.0 (22A5326g) - 756A6FE1-A9C7-4A3D-A8FD-01FD7B5F84BC (Deleting)
 iOS 18.0 (22A5307f) - 5DB182D5-FAA1-477D-922F-CFA728C5A6FA (Deleting)
 iOS 18.0 (22A5346a) - C844925F-1BCA-46FD-B0B9-21587AB3EDE5 (Deleting)
 iOS 18.0 (22A5307f) - CC3EB15F-4EAA-4591-AE5C-2762AC17C426 (Unusable - Other Failure: Duplicate of 5E3173BD-25F7-4446-9593-B5E6330B65CE)
 -- tvOS --
 tvOS 18.0 (22J5290l) - A7A2E335-D433-456D-AC61-D5061317A911 (Ready)
 -- watchOS --
 watchOS 11.0 (22R5284o) - 87DB6C3E-A51E-4394-AD35-F6BDCBDEFDC9 (Ready)

How to I finish deleting these runtimes?

I can't re-install, because:

$ simctl runtime add iOS_18_Release_Candidate_Simulator_Runtime.dmg
The iOS Simulator runtime 22A3351 is not installed, installing...
D: C76A5156-5225-4683-806A-FC604074F2C7 iOS (18.0 - 22A3351) (Unusable - Other Failure: Error Domain=SimDiskImageErrorDomain Code=5 "Duplicate of 036938A4-AAF7-4671-8880-8E381770E397" UserInfo={NSLocalizedDescription=Duplicate of 036938A4-AAF7-4671-8880-8E381770E397, unusableErrorDetail=})

and it's the "Deleting" runtimes aren't usable (causing things like ibtool/actool to stop working), presumably because they're "Deleting."

A reboot does not fix anything.

Do you se anything relevant in ~/Library/Logs/CoreSimulator/CoreSimulator.log ?

Please run 'sudo sysdiagnose -q' and 'xcrun simctl diagnose' after reproducing and provide the resulting tarballs. Debug logging can be enabled via defaults write com.apple.CoreSimulator DebugLogging -bool YES (and can be later removed with defaults delete com.apple.CoreSimulator DebugLogging).

Simulator runtime stuck "Deleting"
 
 
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