Wrong rpm info?

After version update to 1.9.4 Realdash (iPhone) seems to have incorrect rpm info (about 500rpm too much at idle) if compared to Tunerstudio or cars own tachometer. Before the update rpm info was correct. Connection to Megasquirt 2 is by wifi and connection itself seems to be working ok. Any ideas, remove/reinstall or some settings to be checked? Thanks.

Removal and new installation solved the issue.