Filament manager dialog box does not enable "Start Print" on multiple spools with single extruder

[samuellazea]

Describe the bug I have a gcode containing 2 colors. I added multiple spools in the filament manager. Same type of material also. I select the checkbox for "Show dialog to confirm selected spools before starting/resuming the print job". This makes sure to ask me before print of what spool it will use. On single color print this works (with making sure to select first the right spool in the left corner dropdown before hitting the print button). But on this 2 color print it asks for 2 spools but never activates the "Start Print" button. I attached few screenshots for more info

Steps to reproduce

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior I would expect on selecting the correct spools in the dialog box the "Start Print" button to be activated and to start printing after clicking it.

Did the same happen when all other 3rd party plugins are disabled? If not which plugin is causing the issue?

Log file Drag and drop the octoprint.log here.

Screenshots