Unable to Download OR Upload subtitles

[demiGod095]

Edit: Updated jellyfin post announcement. I don't usually use the plugin, so I am not sure if it was the update that broke it.

Jellyfin Version: 10.11.7
Plugin Version: 23.0.0.0
Docker Image: ghcr.io/hotio/jellyfin

I am getting the following error when I select any subtitle on any movie to download:

[10:24:51] [ERR] [20] Jellyfin.Api.Controllers.SubtitleController: Error downloading subtitles
System.ArgumentException: Invalid subtitle format: srt
   at MediaBrowser.Providers.Subtitles.SubtitleManager.TrySaveToFiles(Stream stream, List`1 savePaths, Video video, String extension)
   at MediaBrowser.Providers.Subtitles.SubtitleManager.TrySaveSubtitle(Video video, LibraryOptions libraryOptions, SubtitleResponse response)
   at MediaBrowser.Providers.Subtitles.SubtitleManager.TrySaveSubtitle(Video video, LibraryOptions libraryOptions, SubtitleResponse response)
   at MediaBrowser.Providers.Subtitles.SubtitleManager.DownloadSubtitles(Video video, LibraryOptions libraryOptions, String subtitleId, CancellationToken cancellationToken)

This is the log I get when I found an srt file and tried to upload:

[10:37:17] [ERR] [32] Jellyfin.Api.Middleware.ExceptionMiddleware: Error processing request. URL POST /Videos/60dd0eeef5516752537dd9136150acc9/Subtitles.
System.ArgumentException: Invalid subtitle format: srt
   at MediaBrowser.Providers.Subtitles.SubtitleManager.TrySaveToFiles(Stream stream, List`1 savePaths, Video video, String extension)
   at MediaBrowser.Providers.Subtitles.SubtitleManager.TrySaveSubtitle(Video video, LibraryOptions libraryOptions, SubtitleResponse response)
   at MediaBrowser.Providers.Subtitles.SubtitleManager.TrySaveSubtitle(Video video, LibraryOptions libraryOptions, SubtitleResponse response)
   at Jellyfin.Api.Controllers.SubtitleController.UploadSubtitle(Guid itemId, UploadSubtitleDto body)
   at Jellyfin.Api.Controllers.SubtitleController.UploadSubtitle(Guid itemId, UploadSubtitleDto body)
   at Jellyfin.Api.Controllers.SubtitleController.UploadSubtitle(Guid itemId, UploadSubtitleDto body)
   at lambda_method6757(Closure, Object)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ActionMethodExecutor.TaskOfActionResultExecutor.Execute(ActionContext actionContext, IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, Object[] arguments)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeActionMethodAsync>g__Awaited|12_0(ControllerActionInvoker invoker, ValueTask`1 actionResultValueTask)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeNextActionFilterAsync>g__Awaited|10_0(ControllerActionInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Rethrow(ActionExecutedContextSealed context)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeInnerFilterAsync>g__Awaited|13_0(ControllerActionInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextResourceFilter>g__Awaited|25_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResourceExecutedContextSealed context)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeFilterPipelineAsync>g__Awaited|20_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Awaited|17_0(ResourceInvoker invoker, Task task, IDisposable scope)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Awaited|17_0(ResourceInvoker invoker, Task task, IDisposable scope)
   at Jellyfin.Api.Middleware.ServerStartupMessageMiddleware.Invoke(HttpContext httpContext, IServerApplicationHost serverApplicationHost, ILocalizationManager localizationManager)
   at Jellyfin.Api.Middleware.WebSocketHandlerMiddleware.Invoke(HttpContext httpContext, IWebSocketManager webSocketManager)
   at Jellyfin.Api.Middleware.IPBasedAccessValidationMiddleware.Invoke(HttpContext httpContext, INetworkManager networkManager)
   at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context)
   at Jellyfin.Api.Middleware.QueryStringDecodingMiddleware.Invoke(HttpContext httpContext)
   at Swashbuckle.AspNetCore.ReDoc.ReDocMiddleware.Invoke(HttpContext httpContext)
   at Swashbuckle.AspNetCore.SwaggerUI.SwaggerUIMiddleware.Invoke(HttpContext httpContext)
   at Swashbuckle.AspNetCore.Swagger.SwaggerMiddleware.Invoke(HttpContext httpContext, ISwaggerProvider swaggerProvider)
   at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
   at Jellyfin.Api.Middleware.RobotsRedirectionMiddleware.Invoke(HttpContext httpContext)
   at Jellyfin.Api.Middleware.LegacyEmbyRouteRewriteMiddleware.Invoke(HttpContext httpContext)
   at Microsoft.AspNetCore.ResponseCompression.ResponseCompressionMiddleware.InvokeCore(HttpContext context)
   at Jellyfin.Api.Middleware.ResponseTimeMiddleware.Invoke(HttpContext context, IServerConfigurationManager serverConfigurationManager)
   at Jellyfin.Api.Middleware.ExceptionMiddleware.Invoke(HttpContext context)

UI hangs:

[datwildfire]

Having issues as well, no subtitles being downloaded whatsoever since the latest jf update

[bilalbozkurt]

same here

[theguymadmax]

Fixed by jellyfin/jellyfin#16539