There are also exceptions in logs
Code3/22/2021 3:20:50 PM ::: [2021.03.22 15.20.50]VsixInstaller:currentConfiguration=16.0
3/22/2021 3:20:50 PM ::: [2021.03.22 15.20.50]VsixInstaller:Installing VSIX
3/22/2021 3:20:50 PM ::: [2021.03.22 15.20.50]VsixInstaller:> InternalInstall
3/22/2021 3:20:50 PM ::: [2021.03.22 15.20.50]VsixInstaller:> InstallVsix
3/22/2021 3:20:50 PM ::: [2021.03.22 15.20.50]VsixInstaller:Installing: C:\Program Files (x86)\DevExpress 20.2\CodeRush\System\Vsix\DevExpress.CodeRush.Roslyn.vsix
3/22/2021 3:20:50 PM ::: [2021.03.22 15.20.50]VsixInstaller:> InstallVsixForInstance
3/22/2021 3:20:50 PM ::: [2021.03.22 15.20.50]VsixInstaller:Installing vsix for VS: 16.9.31112.23
3/22/2021 3:20:50 PM ::: [2021.03.22 15.20.50]VsixInstaller:> DeletePreviosVsixFiles
3/22/2021 3:20:50 PM ::: [2021.03.22 15.20.50]VsixInstaller:No extensions found with id: 81b8f465-6112-407e-a05a-44e3188746af
3/22/2021 3:20:50 PM ::: [2021.03.22 15.20.50]VsixInstaller:< DeletePreviosVsixFiles
3/22/2021 3:20:50 PM ::: [2021.03.22 15.20.50]VsixInstaller:Extracting vsix file to: C:\Users\Admin\AppData\Local\Microsoft\VisualStudio\16.0_75f5dbd4\Extensions\60b8c8ff.c57
3/22/2021 3:20:52 PM ::: [2021.03.22 15.20.52]VsixInstaller:Extracted
3/22/2021 3:20:52 PM ::: [2021.03.22 15.20.52]VsixInstaller:GetExternalManagerWritableSettings
3/22/2021 3:20:52 PM ::: [2021.03.22 15.20.52]VsixInstaller:< InstallVsixForInstance
3/22/2021 3:20:52 PM ::: [2021.03.22 15.20.52]VsixInstaller:< InstallVsix
3/22/2021 3:20:52 PM ::: [2021.03.22 15.20.52]VsixInstaller:Exception:
3/22/2021 3:20:52 PM ::: [2021.03.22 15.20.52]VsixInstaller:System.NullReferenceException: Object reference not set to an instance of an object.
3/22/2021 3:20:52 PM ::: at DevExpress.CodeRush.Install.VS16SettingsProvider.GetExternalManagerWritableSettings(SettingsType scope)
3/22/2021 3:20:52 PM ::: at DevExpress.CodeRush.Install.VS16SettingsProvider.GetWritableSettings(SettingsType scope)
3/22/2021 3:20:52 PM ::: at DevExpress.CodeRush.Install.DefaultVsixInstallService.UpdateVSSettingsOnVsixInstall(IVSInstance instance, VsixInfo vsixInfo, String installPath)
3/22/2021 3:20:52 PM ::: at DevExpress.CodeRush.Install.DefaultVsixInstallService.InstallVsixForInstance(IVSInstance instance, String vsixPath, VsixInfo vsixInfo)
3/22/2021 3:20:52 PM ::: at DevExpress.CodeRush.Install.DefaultVsixInstallService.InstallVsix(IVSConfiguration cfg, String vsixPath)
3/22/2021 3:20:52 PM ::: at DevExpress.CodeRush.Install.VsixInstaller.InstallVsix(IVSConfiguration cfg)
3/22/2021 3:20:52 PM ::: at DevExpress.CodeRush.Install.VsixInstaller.InstallFeature(IVSConfiguration cfg, IDictionary stateSaver)
3/22/2021 3:20:52 PM ::: [2021.03.22 15.20.52]VsixInstaller:< InternalInstall
3/22/2021 3:20:52 PM ::: [2021.03.22 15.20.52]VsixInstaller:< Install
3/22/2021 3:20:52 PM ::: [2021.03.22 15.20.52]VsixInstaller:< Install