2022-12-03T14-08-14-0911 | 1 | TRACE | Extracting plugin package metadata from C:\Users\USERNAME\AppData\Local\Temp\5gk0aceb.ftc
2022-12-03T14-08-14-1972 | 1 | WARN | Plugin file not found: 'C:\Users\USERNAME\AppData\Local\Loupedeck\Plugins\LoupeXIVDeck\bin\win\LoupeXIVDeck.dll'
2022-12-03T14-08-14-1982 | 1 | TRACE | Package 'plugin4' 'LoupeXIVDeck' 'LoupeXIVDeck' '0.3.0' 'C:\Users\USERNAME\AppData\Local\Loupedeck\Plugins\LoupeXIVDeck\bin\win\LoupeXIVDeck.dll' 'C:\Users\USERNAME\AppData\Local\Loupedeck\Plugins\LoupeXIVDeck'
2022-12-03T14-08-14-1982 | 1 | TRACE | Plugin 'LoupeXIVDeck'
2022-12-03T14-08-14-2077 | 1 | TRACE | Loupedeck is running True
2022-12-03T14-08-14-2077 | 1 | TRACE | Sending service stop message
2022-12-03T14-08-14-2117 | 1 | TRACE | Message sent
2022-12-03T14-08-14-2117 | 1 | TRACE | Waiting Loupedeck to stop
2022-12-03T14-08-14-2183 | 1 | TRACE | Loupedeck is running True
2022-12-03T14-08-14-2203 | 8 | VERB | WS: Begin closing the connection.
2022-12-03T14-08-14-2213 | 8 | VERB | WS: Was clean?: True
sent: True
received: True
2022-12-03T14-08-14-2223 | 8 | VERB | WS: End closing the connection.
2022-12-03T14-08-14-2233 | 8 | TRACE | WSC: Disconnected: code 1001 clean 'True' reason ''
2022-12-03T14-08-14-2243 | 8 | TRACE | WSC: Disconnecting 'ws://localhost:59415/version1'
2022-12-03T14-08-14-2248 | 8 | TRACE | WS: The connection has already been closed.
2022-12-03T14-08-14-2248 | 8 | TRACE | WSC: Disconnected
2022-12-03T14-08-14-4767 | 1 | TRACE | Loupedeck is running True
2022-12-03T14-08-14-7413 | 1 | TRACE | Loupedeck is running True
2022-12-03T14-08-15-0022 | 6 | TRACE | Event 'PluginInstallationProgress'
2022-12-03T14-08-15-0067 | 1 | TRACE | Loupedeck is running False
2022-12-03T14-08-15-0077 | 1 | TRACE | Service is stopped
2022-12-03T14-08-15-0087 | 1 | TRACE | Uninstalling plugin 'LoupeXIVDeck'
2022-12-03T14-08-15-0087 | 1 | TRACE | Plugin directory does not exist
2022-12-03T14-08-15-0402 | 1 | TRACE | Plugin.Install('C:\Users\USERNAME\AppData\Local\Loupedeck\Plugins\LoupeXIVDeck\bin\win\LoupeXIVDeck.dll')
2022-12-03T14-08-15-0412 | 1 | TRACE | Loading assembly 'C:\Users\USERNAME\AppData\Local\Loupedeck\Plugins\LoupeXIVDeck\bin\win\LoupeXIVDeck.dll'
2022-12-03T14-08-15-0432 | 1 | ERROR | Exception caught: Error calling Install method
2022-12-03T14-08-15-0432 | 1 | ERROR | (FileNotFoundException) Could not load file or assembly 'file:///C:\Users\USERNAME\AppData\Local\Loupedeck\Plugins\LoupeXIVDeck\bin\win\LoupeXIVDeck.dll' or one of its dependencies. The system cannot find the file specified.
2022-12-03T14-08-15-0432 | 1 | ERROR | Exception details:
2022-12-03T14-08-15-0442 | 1 | ERROR | (FileNotFoundException) Could not load file or assembly 'file:///C:\Users\USERNAME\AppData\Local\Loupedeck\Plugins\LoupeXIVDeck\bin\win\LoupeXIVDeck.dll' or one of its dependencies. The system cannot find the file specified.
2022-12-03T14-08-15-0442 | 1 | ERROR | Call stack:
2022-12-03T14-08-15-0453 | 1 | ERROR | System.Reflection.RuntimeAssembly._nLoad(System.Reflection.AssemblyName fileName, System.String codeBase, System.Security.Policy.Evidence assemblySecurity, System.Reflection.RuntimeAssembly locationHint, System.Threading.StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks)
2022-12-03T14-08-15-0463 | 1 | ERROR | System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(System.Reflection.AssemblyName assemblyRef, System.Security.Policy.Evidence assemblySecurity, System.Reflection.RuntimeAssembly reqAssembly, System.Threading.StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks)
2022-12-03T14-08-15-0463 | 1 | ERROR | System.Reflection.RuntimeAssembly.InternalLoadFrom(System.String assemblyFile, System.Security.Policy.Evidence securityEvidence, Byte[] hashValue, System.Configuration.Assemblies.AssemblyHashAlgorithm hashAlgorithm, Boolean forIntrospection, Boolean suppressSecurityChecks, System.Threading.StackCrawlMark& stackMark)
2022-12-03T14-08-15-0463 | 1 | ERROR | System.Reflection.Assembly.LoadFrom(System.String assemblyFile)
2022-12-03T14-08-15-0463 | 1 | ERROR | Loupedeck.PluginInstaller.PluginInstaller.LoadAssembly(System.String assemblyFilePath)
2022-12-03T14-08-15-0473 | 1 | ERROR | Loupedeck.PluginInstaller.PluginInstaller.LoadAndInvokeMethod(System.String pluginFilePath, System.Func`3[System.Object,System.Object,System.Object] function)
2022-12-03T14-08-15-0473 | 1 | ERROR | Loupedeck.PluginInstaller.PluginInstaller.LoadAndInvokePluginMethod(System.String pluginFilePath, System.String methodName, System.Object[] parameters)
2022-12-03T14-08-15-0473 | 1 | ERROR | Loupedeck.PluginInstaller.PluginInstaller.InvokeInstallOrUninstall(System.String pluginFilePath, System.String methodName)
2022-12-03T14-08-15-0473 | 1 | ERROR | Loupedeck.PluginInstaller.PluginPackageInstaller.CallInstallMethod()
2022-12-03T14-08-15-0483 | 1 | ERROR | ----------
2022-12-03T14-08-15-0483 | 1 | ERROR | Loupedeck.Tracer.Error(System.String message, System.Exception ex)
2022-12-03T14-08-15-0483 | 1 | ERROR | Loupedeck.PluginInstaller.PluginPackageInstaller.CallInstallMethod()
2022-12-03T14-08-15-0493 | 1 | ERROR | Loupedeck.LoupedeckServiceTool.LoupedeckServiceTool.InstallPlugin(System.String pluginPackageFilePath)
2022-12-03T14-08-15-0493 | 1 | ERROR | Loupedeck.LoupedeckServiceTool.Application.Execute(System.String[] args)
2022-12-03T14-08-15-0493 | 1 | ERROR | Loupedeck.LoupedeckServiceTool.Program.Main(System.String[] args)
2022-12-03T14-08-15-0503 | 1 | TRACE | Deleting directory 'C:\Users\USERNAME\AppData\Local\Loupedeck\Plugins\LoupeXIVDeck'
2022-12-03T14-08-15-0558 | 1 | TRACE | Directory deleted
I unpacked the plugin to manually install it, and it looks like the metadata needs to be altered slightly: pluginFileName: LoupeXIVDeck.dll
should be pluginFileName: LoupeXIVDeckPlugin.dll
— adding the missing "Plugin" to my local version of the metadata YAML file has correctly installed the plugin and it's now pinging for the XIVDeck plugin and hooking into the game as expected.