After pressing the 'Pause' button, the GUI accepts buttons other than 'Resume' and 'Stop'.
The GUI should gray out another button not to click it.
For example, if you click the 'Run project from here' button on '2 Retest slippage', the GUI accepts it, then it will be crashed.
Steps to reproduce:
1: Build strategies
2: Click 'Pause' on 'Build strategies'
3: Click the 'Run project from here' button on '2. Retest slippage'