undefined method 'action_encoding_template' for class MissionControl::Jobs::QueuesController

[wout]

In A fairly new Rails app (8.0.1 created last month) I'm getting the following error:

undefined method 'action_encoding_template' for class MissionControl::Jobs::QueuesController

        def self.action_encoding_template(request, controller, action) # :nodoc:
          controller && controller.valid_encoding? &&
            request.controller_class_for(controller).action_encoding_template(action)
        rescue MissingController
          nil
        end

Backtrace:

actionpack (8.0.2) lib/action_dispatch/request/utils.rb:108:in 'ActionDispatch::Request::Utils::CustomParamEncoder.action_encoding_template'
actionpack (8.0.2) lib/action_dispatch/request/utils.rb:102:in 'ActionDispatch::Request::Utils::CustomParamEncoder.encode'
actionpack (8.0.2) lib/action_dispatch/request/utils.rb:47:in 'ActionDispatch::Request::Utils.set_binary_encoding'
actionpack (8.0.2) lib/action_dispatch/http/parameters.rb:70:in 'ActionDispatch::Http::Parameters#path_parameters='
actionpack (8.0.2) lib/action_dispatch/journey/router.rb:50:in 'block in ActionDispatch::Journey::Router#serve'
actionpack (8.0.2) lib/action_dispatch/journey/router.rb:133:in 'block in ActionDispatch::Journey::Router#find_routes'
actionpack (8.0.2) lib/action_dispatch/journey/router.rb:126:in 'Array#each'
actionpack (8.0.2) lib/action_dispatch/journey/router.rb:126:in 'ActionDispatch::Journey::Router#find_routes'
actionpack (8.0.2) lib/action_dispatch/journey/router.rb:34:in 'ActionDispatch::Journey::Router#serve'
actionpack (8.0.2) lib/action_dispatch/routing/route_set.rb:908:in 'ActionDispatch::Routing::RouteSet#call'
railties (8.0.2) lib/rails/engine/lazy_route_set.rb:68:in 'Rails::Engine::LazyRouteSet#call'
railties (8.0.2) lib/rails/engine.rb:535:in 'Rails::Engine#call'
railties (8.0.2) lib/rails/railtie.rb:226:in 'Kernel#public_send'
railties (8.0.2) lib/rails/railtie.rb:226:in 'Rails::Railtie.method_missing'
actionpack (8.0.2) lib/action_dispatch/routing/mapper.rb:33:in 'block in <class:Constraints>'
actionpack (8.0.2) lib/action_dispatch/routing/mapper.rb:62:in 'ActionDispatch::Routing::Mapper::Constraints#serve'
actionpack (8.0.2) lib/action_dispatch/journey/router.rb:53:in 'block in ActionDispatch::Journey::Router#serve'
actionpack (8.0.2) lib/action_dispatch/journey/router.rb:133:in 'block in ActionDispatch::Journey::Router#find_routes'
actionpack (8.0.2) lib/action_dispatch/journey/router.rb:126:in 'Array#each'
actionpack (8.0.2) lib/action_dispatch/journey/router.rb:126:in 'ActionDispatch::Journey::Router#find_routes'
actionpack (8.0.2) lib/action_dispatch/journey/router.rb:34:in 'ActionDispatch::Journey::Router#serve'
actionpack (8.0.2) lib/action_dispatch/routing/route_set.rb:908:in 'ActionDispatch::Routing::RouteSet#call'
railties (8.0.2) lib/rails/engine/lazy_route_set.rb:68:in 'Rails::Engine::LazyRouteSet#call'
rack (3.1.13) lib/rack/tempfile_reaper.rb:20:in 'Rack::TempfileReaper#call'
rack (3.1.13) lib/rack/etag.rb:29:in 'Rack::ETag#call'
rack (3.1.13) lib/rack/conditional_get.rb:31:in 'Rack::ConditionalGet#call'
rack (3.1.13) lib/rack/head.rb:15:in 'Rack::Head#call'
actionpack (8.0.2) lib/action_dispatch/http/permissions_policy.rb:38:in 'ActionDispatch::PermissionsPolicy::Middleware#call'
actionpack (8.0.2) lib/action_dispatch/http/content_security_policy.rb:38:in 'ActionDispatch::ContentSecurityPolicy::Middleware#call'
rack-session (2.1.0) lib/rack/session/abstract/id.rb:274:in 'Rack::Session::Abstract::Persisted#context'
rack-session (2.1.0) lib/rack/session/abstract/id.rb:268:in 'Rack::Session::Abstract::Persisted#call'
actionpack (8.0.2) lib/action_dispatch/middleware/cookies.rb:706:in 'ActionDispatch::Cookies#call'
activerecord (8.0.2) lib/active_record/migration.rb:671:in 'ActiveRecord::Migration::CheckPending#call'
actionpack (8.0.2) lib/action_dispatch/middleware/callbacks.rb:31:in 'block in ActionDispatch::Callbacks#call'
activesupport (8.0.2) lib/active_support/callbacks.rb:100:in 'ActiveSupport::Callbacks#run_callbacks'
actionpack (8.0.2) lib/action_dispatch/middleware/callbacks.rb:30:in 'ActionDispatch::Callbacks#call'
actionpack (8.0.2) lib/action_dispatch/middleware/executor.rb:16:in 'ActionDispatch::Executor#call'
actionpack (8.0.2) lib/action_dispatch/middleware/actionable_exceptions.rb:18:in 'ActionDispatch::ActionableExceptions#call'
actionpack (8.0.2) lib/action_dispatch/middleware/debug_exceptions.rb:31:in 'ActionDispatch::DebugExceptions#call'
web-console (4.2.1) lib/web_console/middleware.rb:132:in 'WebConsole::Middleware#call_app'
web-console (4.2.1) lib/web_console/middleware.rb:28:in 'block in WebConsole::Middleware#call'
web-console (4.2.1) lib/web_console/middleware.rb:17:in 'Kernel#catch'
web-console (4.2.1) lib/web_console/middleware.rb:17:in 'WebConsole::Middleware#call'
actionpack (8.0.2) lib/action_dispatch/middleware/show_exceptions.rb:32:in 'ActionDispatch::ShowExceptions#call'
railties (8.0.2) lib/rails/rack/logger.rb:41:in 'Rails::Rack::Logger#call_app'
railties (8.0.2) lib/rails/rack/logger.rb:29:in 'Rails::Rack::Logger#call'
actionpack (8.0.2) lib/action_dispatch/middleware/remote_ip.rb:96:in 'ActionDispatch::RemoteIp#call'
actionpack (8.0.2) lib/action_dispatch/middleware/request_id.rb:34:in 'ActionDispatch::RequestId#call'
rack (3.1.13) lib/rack/method_override.rb:28:in 'Rack::MethodOverride#call'
rack (3.1.13) lib/rack/runtime.rb:24:in 'Rack::Runtime#call'
actionpack (8.0.2) lib/action_dispatch/middleware/server_timing.rb:61:in 'block in ActionDispatch::ServerTiming#call'
actionpack (8.0.2) lib/action_dispatch/middleware/server_timing.rb:26:in 'ActionDispatch::ServerTiming::Subscriber#collect_events'
actionpack (8.0.2) lib/action_dispatch/middleware/server_timing.rb:60:in 'ActionDispatch::ServerTiming#call'
actionpack (8.0.2) lib/action_dispatch/middleware/executor.rb:16:in 'ActionDispatch::Executor#call'
actionpack (8.0.2) lib/action_dispatch/middleware/static.rb:27:in 'ActionDispatch::Static#call'
rack (3.1.13) lib/rack/sendfile.rb:114:in 'Rack::Sendfile#call'
railties (8.0.2) lib/rails/engine.rb:535:in 'Rails::Engine#call'
puma (6.6.0) lib/puma/configuration.rb:279:in 'Puma::Configuration::ConfigMiddleware#call'
puma (6.6.0) lib/puma/request.rb:99:in 'block in Puma::Request#handle_request'
puma (6.6.0) lib/puma/thread_pool.rb:390:in 'Puma::ThreadPool#with_force_shutdown'
puma (6.6.0) lib/puma/request.rb:98:in 'Puma::Request#handle_request'
puma (6.6.0) lib/puma/server.rb:472:in 'Puma::Server#process_client'
puma (6.6.0) lib/puma/server.rb:254:in 'block in Puma::Server#run'
puma (6.6.0) lib/puma/thread_pool.rb:167:in 'block in Puma::ThreadPool#spawn_thread' 

I tried replicating it in a brand-new app, but I'm unable to reproduce it. Does this ring a bell with anyone?