Zero Window Packets

My organization is suffering from occasional inconsistencies in network traffic to/from our GitLab server. Our IT Dept has observed that an unusually large volume of “zero window” (0-win) packets is being generated, seemingly related to traffic to/from GitLab server. We are running said TeamCity server in a docker container for ease of management.

Has any issue been observed that might explain this large number of 0-win packets, and/or a configuration element that might be addressed to reduce these network inconsistencies? Are we the only organization seeing these symptoms?