I've been having a problem lately where the editor takes ages to refresh and sometimes completely freezes. I can't alt+tab to it, and clicking on it from another window does nothing (windows doesn't show unity as focused). I checked my logs, and it takes anywhere from 1 minute to 5 minutes to refresh: Code (csharp): Refresh completed in 319.796790 seconds. RefreshInfo: RefreshV2(ForceSynchronousImport) RefreshProfiler: Total: 0.000ms InvokeBeforeRefreshCallbacks: 319794.774ms ApplyChangesToAssetFolders: 1.413ms WriteModifiedImportersToTextMetaFiles: 0.084ms CleanLegacyArtifacts: 0.000ms Scan: 0.000ms OnSourceAssetsModified: 214.563ms UnregisterDeletedAssets: 3.148ms InitializeImportedAssetsSnapshot: 0.000ms GetAllGuidsForCategorization: 16.281ms CategorizeAssets: 0.811ms ImportAndPostprocessOutOfDateAssets: 83.216ms (319398.929ms without children) ImportManagerImport: 224360.092ms (2272.351ms without children) ImportInProcess: 35.052ms ImportOutOfProcess: 2237.229ms UpdateCategorizedAssets: 0.000ms RemoteAssetCacheGetArtifact: 0.070ms (0.000ms without children) RemoteAssetCacheResolve: 0.000ms RemoteAssetCacheDownloadFile: 0.000ms CompileScripts: 0.000ms PostProcessAllAssets: 92626.646ms ReloadImportedAssets: 81.572ms VerifyAssetsAreUpToDateAndCorrect: 30.416ms EnsureUptoDateAssetsAreRegisteredWithGuidPM: 0.000ms InitializingProgressBar: 1.707ms PostProcessAllAssetNotificationsAddChangedAssets: 0.003ms OnDemandSchedulerStart: 0.938ms RestoreLoadedAssetsState: 0.913ms InvokeProjectHasChanged: 8.076ms UpdateImportedAssetsSnapshot: 0.000ms ReloadSourceAssets: 16.216ms UnloadImportedAssets: 6.687ms Hotreload: 0.950ms FixTempGuids: 8.044ms VerifyGuidPMRegistrations: 0.015ms GatherAllCurrentPrimaryArtifactRevisions: 0.000ms UnloadStreamsBegin: 0.953ms LoadedImportedAssetsSnapshotReleaseGCHandles: 0.042ms GetLoadedSourceAssetsSnapshot: 1.231ms PersistCurrentRevisions: 14.451ms UnloadStreamsEnd: 0.000ms GenerateScriptTypeHashes: 0.021ms The only code that should run before/after importing assets is Mirror and NugetForUnity. I've used Mirror in other projects and had no problems with it, and NugetForUnity only runs when I do it manually. The project is only 700mb total, with most of it being in the /Library folder. I have a max of 80 scripts, half of which are in a DLL. I've also noticed that loading the project takes 90 seconds, when the numbers don't add up: Code (csharp): [Project] Loading completed in 93.495 seconds Project init time: 1.814 seconds Template init time: 0.000 seconds Services packages init time: 0.000 seconds Package Manager init time: 0.000 seconds Asset Database init time: 0.000 seconds Global illumination init time: 0.000 seconds Assemblies load time: 0.000 seconds Unity extensions init time: 0.031 seconds Asset Database refresh time: 0.000 seconds Scene opening time: 3.031 seconds Does anyone have a fix for this issue? I can barely get any work done due to this.