For the new 6.6.2 GA release I just saw an issue essentially identical to
MB-44931 which has been fixed in Chesire-Cat/7.0.0
I had an Eventing source bucket with 10M docs and was working with an Eventing function that is set/fixed to have a feed boundary "from now" yet occasionally when I resume that function "archive_all_keys_by_prefix" it processes all 10 Million docs when it should do nothing.
I had just two functions one deployed "purge_all_keys_by_prefix" and the other "archive_all_keys_by_prefix" I was pausing and resuming on resume it processed 10M docs.
I took a CB collect when this happened
This has been uploaded via