If script code is entered into any of the Debug Console watch fields, and focus is switched away from Arma3 (alt-tab to another program), those lines of code will continue being repeatedly executed, even if Arma3 is loaded without the -noPause startup parameter. The code seems to be executed less frequently than it would if Arma3 had focus, but still many times per second. If code generates RPT reports, these are also logged indefinitely (which is probably the biggest inconvenience of this bug, many thousands of duplicate error messages)

Expected behaviour: When Debug Console is open, Arma3 should do nothing while it does not have focus (as with all other aspects of the game)