Yuriy,
I seem to be having a similar issue:
[PID:09520:020 2013.11.14 01:53:17.395 ERROR QueuedHandlerMRES ] Error while processing message EventStore.Core.Messages.ClientMessage+ReadStreamEventsBackwardCompleted in queued handler ‘Projection Core #2’.
System.NotSupportedException: Conversion from Position to MultiStream position tag is not supported
at EventStore.Projections.Core.Services.Processing.MultiStreamPositionTagger.AdjustTag(CheckpointTag tag) in c:\BuildAgent1\work\oss\windows\releasebuilds\src\EventStore\EventStore.Projections.Core\Services\Processing\MultiStreamPositionTagger.cs:line 100
at EventStore.Projections.Core.Services.Processing.CheckpointTagVersion.AdjustBy(PositionTagger tagger, ProjectionVersion version) in c:\BuildAgent1\work\oss\windows\releasebuilds\src\EventStore\EventStore.Projections.Core\Services\Processing\CheckpointTagExtensions.cs:line 52
at EventStore.Projections.Core.Services.Processing.EmittedStream.ReadStreamEventsBackwardCompleted(ReadStreamEventsBackwardCompleted message, CheckpointTag upTo) in c:\BuildAgent1\work\oss\windows\releasebuilds\src\EventStore\EventStore.Projections.Core\Services\Processing\EmittedStream.cs:line 267
at EventStore.Core.Messaging.RequestResponseDispatcher`2.Handle(TResponse message) in c:\BuildAgent1\work\oss\windows\releasebuilds\src\EventStore\EventStore.Core\Messaging\RequestResponseDispatcher.cs:line 86
at EventStore.Core.Bus.MessageHandler`1.TryHandle(Message message) in c:\BuildAgent1\work\oss\windows\releasebuilds\src\EventStore\EventStore.Core\Bus\MessageHandler.cs:line 60
at EventStore.Core.Bus.InMemoryBus.Publish(Message message) in c:\BuildAgent1\work\oss\windows\releasebuilds\src\EventStore\EventStore.Core\Bus\InMemoryBus.cs:line 350
at EventStore.Core.Bus.QueuedHandlerMRES.ReadFromQueue(Object o) in c:\BuildAgent1\work\oss\windows\releasebuilds\src\EventStore\EventStore.Core\Bus\QueuedHandlerMRES.cs:line 141
All projections are missing from the Projection page in UI.
Jakub