I am having problems with my subscription. Unfortunately I cannot reproduce it with command line alone but I can share the code. The repo is here on github:
If you run EventSourcedSendAndReceiveTests test against the competing branch, after writing event number 5 the comp2_es_router projection throws an exception (but does not transition to faulted state). The projection is working (I can debug it and see it processes events) but nothing more gets emitted from it.