Hi Richard,

To prevent this issue, make sure you use "SHARE_SESSION" as the onSimilarEngineFound parameter of the createEngine function.

All your Data Adapters must be part of the same Adapter Set. With this kind of configuration, there is no risk in having the same session access any number of different Data Adapters. As a reference example of multiple Adapter configuration, take a look at the pre-installed demos available in the Lightstreamer distribution.