Hi guys, I see that some UiCommon models, such as VmListModel, already have override for SearchableListModel.supportsServerSideSorting method. In general, any SearchableListModel subclass should contain: @Override public boolean supportsServerSideSorting() { return true; } if, and only if, its syncSearch method uses VdcQueryType.Search (Search query). This applies to all SearchableListModel subclasses, i.e. both main tab & sub tab list models. Due to current class inheritance where sub tab list models (like ClusterVmListModel) extend main tab list models (like VmListModel), please make sure to check following scenario: - main tab model uses Search query, supportsServerSideSorting=true - sub tab model does NOT use search query --> must provide override supportsServerSideSorting=false Thanks, Vojtech