Cache Metadata,Full Eviction,read data fail

I use CouchbaseServer 3.0 and .net sdk 1.3, when I set “Cache Metadata,Full Eviction”, then read document, sometimes, I got a error, “Found response with Correlation Id {0}, but no key is matching it.”, and save document, sometimes, I got a error, “KeyNotFound”…, I do not know hot to solve it, please help me.