Dotnet issue after update

I've just updated to TeamCity 2020.1 (build 78475) and initially all seemed to be well. However, it soom became clear that there was an issue as all my builds were failing. I've narrowed it down to the .NET support plugin which is erroring with Failed to initialize Spring Context  and the details below. One of the key lines appears to be Runner with type dotnet already registered. I've tried disabling various combinations of plugins that could be conflicting with no success. I'm now completely stuck and would appreciate any suggestions please.

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jetbrains.buildServer.dotnet.DotnetRunnerRunType#0' defined in Byte array resource [plugin: dotnet#plugin-dotnet-server.jar!/META-INF/build-server-plugin-dotnet.xml]: Bean instantiation via constructor failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [jetbrains.buildServer.dotnet.DotnetRunnerRunType]: Constructor threw exception; nested exception is java.lang.RuntimeException: Runner with type dotnet already registered.
at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:279)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1197)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1099)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:511)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:481)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:312)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:308)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:756)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542)
at jetbrains.buildServer.plugins.spring.SpringPluginLoader.pluginClassesLoaded(SpringPluginLoader.java:116)
at sun.reflect.GeneratedMethodAccessor71.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at jetbrains.buildServer.util.EventDispatcher$3.run(EventDispatcher.java:135)
at jetbrains.buildServer.util.NamedThreadFactory.executeWithNewThreadName(NamedThreadFactory.java:75)
at jetbrains.buildServer.util.EventDispatcher.dispatch(EventDispatcher.java:130)
at jetbrains.buildServer.util.EventDispatcher$2.invoke(EventDispatcher.java:80)
at com.sun.proxy.$Proxy24.pluginClassesLoaded(Unknown Source)
at jetbrains.buildServer.plugins.PluginManagerImpl$5.visitPlugin(PluginManagerImpl.java:409)
at jetbrains.buildServer.plugins.PluginsCollection$1.run(PluginsCollection.java:97)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [jetbrains.buildServer.dotnet.DotnetRunnerRunType]: Constructor threw exception; nested exception is java.lang.RuntimeException: Runner with type dotnet already registered.
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:154)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:122)
at jetbrains.buildServer.spring.InstantiationStrategySelector$1.instantiate(InstantiationStrategySelector.java:77)
at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:271)
... 27 more
Caused by: java.lang.RuntimeException: Runner with type dotnet already registered.
at jetbrains.buildServer.serverSide.impl.runType.RunTypeRegistryImpl.registerRunType(RunTypeRegistryImpl.java:4)
at sun.reflect.GeneratedMethodAccessor153.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at jetbrains.buildServer.plugins.spring.AnnotationBasedRegistryInterceptor.invoke(AnnotationBasedRegistryInterceptor.java:45)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)
at com.sun.proxy.$Proxy117.registerRunType(Unknown Source)
at jetbrains.buildServer.dotnet.DotnetRunnerRunType.<init>(DotnetRunnerRunType.kt:38)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:142)
... 30 more