It appears as if "F12" doesn't work as a hotkey. I've tried remapping the character to different hotkeys (F11, for example - which works), and mapping other characters to F12 (which doesn't work).
No matter what, Eve-O appears to not capture the input and instead pass it through to the active window (typically the last eve client I've brought to the front).
Not sure if you'll be able to reproduce this, but I've source-dived and double checked the MS Hotkeys Enum reference (https://docs.microsoft.com/en-us/dotnet/api/system.windows.forms.keys?view=netcore-3.1).
It appears as if "F12" doesn't work as a hotkey. I've tried remapping the character to different hotkeys (F11, for example - which works), and mapping other characters to F12 (which doesn't work).
No matter what, Eve-O appears to not capture the input and instead pass it through to the active window (typically the last eve client I've brought to the front).