@mrmikel - there is nothing special with how print is wired up in the code that I can see. Other than it has a default shortcut of ctrl+P. You say "the hot key program", which one? Are you sure it isn't secretly sending ctrl+P in your keystrokes somehow? What happens if you clear the ctrl+P shortcut in Sigil and/or assign a different shortcut to Print?
Using Alt keys (alone) as a modifier for keyboard shortcuts in Windows is always dodgy, given how Windows reserves a bunch of them for interaction with menus of the application etc.
Glad you like the stability, it was definitely a major priority for this release
