Unknown default collection regression

2021-04-30T11:41:24.3140224-07:00 [DBG] Executing op GetCidByName on "10.112.211.104:11210" with key "" and opaque 64. (ebdc59ba)
2021-04-30T11:41:24.3158918-07:00 [DBG] Server "10.112.211.104:11210" returned UnknownCollection for op GetCidByName with key "" and opaque 64. (a50bc386)
2021-04-30T11:41:24.3366858-07:00 [DBG] Op failed: "Couchbase.Core.IO.Operations.Collections.GetCid" (01625f1d)
Couchbase.Core.Exceptions.CollectionNotFoundException: Exception of type 'Couchbase.Core.Exceptions.CollectionNotFoundException' was thrown.
at Couchbase.Core.ClusterNode.ExecuteOp(Func`4 sender, IOperation op, Object state, CancellationTokenPair tokenPair) in C:\Users\Jeff Morris\source\couchbase-net-client\src\Couchbase\Core\ClusterNode.cs:line 537
----------------------Context Info--------------------------
{"DispatchedFrom":null,"DispatchedTo":null,"DocumentKey":"","ClientContextId":"64","Cas":0,"Status":136,"BucketName":"default","CollectionName":null,"ScopeName":null,"Message":"KV Error:

{Name=\"UNKNOWN_COLLECTION\", Description=\"Operation specified an unknown collection.\", Attributes=\"invalid-input\"}

","OpCode":"GetCidByName"}