User may see different result with/without --member parameters.
All gemfire.
It is because the region is specified with both REPLICATE and REPLICATE_PROXY region shortcuts on the server.
REPLICATE_PROXY would not store data actually. For more details of the type of regions, please refer to below doc.
Region Shortcuts Reference -> REPLICATE_PROXY
Add --member parameter if you use REPLICATE_PROXY to get query result only from the data nodes.
We are also seeking for opportunity to improve the experiences such as the --group to group the data nodes and query correct nodes to get proper results.
For now, please use the work around mentioned here.
Also, can find more information here in the document:
Querying a Specific Member
NA