As the title says, it crashes when I try to load a scenario into the editor. Here is the error message I get:

The mod miniMAXIme: Character scaler and selector (2.0.17) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event minime::on_pre_player_removed (ID 156)
Unknown shortcut name: minime_toggle_selector_gui
stack traceback:
    [C]: in function 'is_shortcut_available'
    __minime__/scripts/player.lua:1615: in function 'event_handler'
    __minime__/scripts/events.lua:302: in function <__minime__/scripts/events.lua:299>

(FWIW, this forum system uses Markdown, so horizontal rules are created with a series of hyphens on a separate line, and three back-quotes--beside the '1' key--on a separate line above and below code blocks delimit them.)

Thanks for the report!

As the title says, it crashes when I try to load a scenario into the editor.

Just to make sure I've got this correctly: On the main menu, you click on Map Editor-->Edit scenario, select a scenario, and then you get the crash?

(FWIW, this forum system uses Markdown, so horizontal rules are created with a series of hyphens on a separate line, and three back-quotes--beside the '1' key--on a separate line above and below code blocks delimit them.)

Learned something new today! I used to insert code by indenting each line with 4 spaces, which I can easily do in my editor by marking all lines and hitting the tab key (tabs are translated to spaces by the editor), so I don't have to manually insert the spaces in each line. :-)

So far, I haven't been able to reproduce this. The shortcut exists – as it should, because its prototype is created during the data stage. Could you upload the scenario, perhaps?