Simulator files interaction: "The operation couldn't be completed. Invalid argument - Invalid argument"

When attempting to add files to the simulator I get the following error:

The operation couldn't be completed. Invalid argument

Invalid argument

When attempting to download a file via Safari and using share to save to files the UI does nothing, but the System logs yields:

com.apple.CoreSimulator.SimDevice.8496622D-825E-43EB-939E-04D9DDB548CB[72232] (com.apple.xpc.launchd.oneshot.0x10000000.SimulatorBridge[72268]): Service exited due to SIGABRT

Another SIGABRT happens when manually putting files into the simulators directory and attempting to open them. They do not generate preview. Not for text files, images or videos. I originally noticed it by not being able to open files in my app.

The system log mostly looks like this:

com.apple.CoreSimulator.SimDevice.8496622D-825E-43EB-939E-04D9DDB548CB[72232] (com.apple.intents.intents-helper): Unknown key for Boolean: EnableTransactions
com.apple.CoreSimulator.SimDevice.8496622D-825E-43EB-939E-04D9DDB548CB[72232] (com.apple.intents.intents-helper): Unknown key for Boolean: EnablePressuredExit
com.apple.CoreSimulator.SimDevice.8496622D-825E-43EB-939E-04D9DDB548CB[72232] (com.apple.xpc.launchd.domain.pid.SharingXPCHelper.73009): com.apple.photos.ImageConversionService (lint): XPC Service Info.plist is missing XPCService dictionary
com.apple.CoreSimulator.SimDevice.8496622D-825E-43EB-939E-04D9DDB548CB[72232] (com.apple.xpc.launchd.domain.pid.SharingXPCHelper.73009): com.apple.photos.VideoConversionService (lint): XPC Service Info.plist is missing XPCService dictionary
com.apple.CoreSimulator.SimDevice.8496622D-825E-43EB-939E-04D9DDB548CB[72232] (com.apple.textkit.nsattributedstringagent): Unknown key for Boolean: EnableTransactions
com.apple.CoreSimulator.SimDevice.8496622D-825E-43EB-939E-04D9DDB548CB[72232] (com.apple.textkit.nsattributedstringagent): Unknown key for Boolean: EnablePressuredExit
com.apple.CoreSimulator.SimDevice.8496622D-825E-43EB-939E-04D9DDB548CB[72232] (com.apple.uifoundation-bundle-helper): Unknown key for Boolean: EnableTransactions
com.apple.CoreSimulator.SimDevice.8496622D-825E-43EB-939E-04D9DDB548CB[72232] (com.apple.uifoundation-bundle-helper): Unknown key for Boolean: EnablePressuredExit
com.apple.CoreSimulator.SimDevice.8496622D-825E-43EB-939E-04D9DDB548CB[72232] (com.apple.xpc.launchd.domain.pid.SharingXPCHelper.73009): Failed to bootstrap path: path = /Applications/Xcode-beta.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/MediaConversionService.framework/XPCServices/com.apple.photos.ImageConversionService.xpc, error = 107: Malformed bundle
com.apple.CoreSimulator.SimDevice.8496622D-825E-43EB-939E-04D9DDB548CB[72232] (com.apple.xpc.launchd.domain.pid.SharingXPCHelper.73009): Failed to bootstrap path: path = /Applications/Xcode-beta.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/MediaConversionService.framework/XPCServices/com.apple.photos.VideoConversionService.xpc, error = 107: Malformed bundle
com.apple.CoreSimulator.SimDevice.8496622D-825E-43EB-939E-04D9DDB548CB[72232] (com.apple.AnnotationKit.MigratorService): Unknown key for Boolean: EnableTransactions
com.apple.CoreSimulator.SimDevice.8496622D-825E-43EB-939E-04D9DDB548CB[72232] (com.apple.AnnotationKit.MigratorService): Unknown key for Boolean: EnablePressuredExit

[[A lot more "Unknown key for Boolean: Enable..." and some more errors for Image/Video Conversion]]

I've tried resetting the simulator, updating Xcode, and even completely wiping every Xcode related file with AppCleaner and reinstalling. It still occurs in every simulated device.

EDIT

I actually erased my entire computer and the issue is still occurring. What. Is. Going. On‽

EDIT 2: Digging deeper

I tried running the old open source Textor app, and when trying to create a document I get the similar error

(indented)

Textor[28964:966149] [DocumentManager]
Cannot create urlWrapper for url
    file:///Users/hans/Library/Developer/CoreSimulator/Devices/7EA9AEF5-F208-4BA1-8F61-F5F95CC15A47/data/Containers/Data/Application/A8736BA5-92DF-45A9-8622-CD312C68B403/tmp/Untitled.txt.
    error Error Domain=NSPOSIXErrorDomain
        Code=22
            "couldn't issue sandbox extension com.apple.app-sandbox.read-write 
            for '/Users/hans/Library/Developer/CoreSimulator/Devices/7EA9AEF5-F208-4BA1-8F61-F5F95CC15A47/data/Containers/Data/Application/A8736BA5-92DF-45A9-8622-CD312C68B403/tmp/Untitled.txt':
            Invalid argument"
        UserInfo={
            NSDescription=
               couldn't issue sandbox extension com.apple.app-sandbox.read-write for
               '/Users/hans/Library/Developer/CoreSimulator/Devices/7EA9AEF5-F208-4BA1-8F61-F5F95CC15A47/data/Containers/Data/Application/A8736BA5-92DF-45A9-8622-CD312C68B403/tmp/Untitled.txt':
               Invalid argument}.