Performance Analyzer Altitude Bug 2

Under Performance Analyzer, the Stage Analysis is not updating when changing altitude slider. It only updates when you tweak the engine at Part Properties.
1. New Rocket
2. Open Performance Analyzer
3. Click Mage Engine
4. Slide Altitude to 0.0km ( Stage Analysis not updating (look at the TWR)).
5. While Mage Engine is selected, Click Part Properties
6. Slide the size to 50% (Stage Analysis updated)