Impossible to load Image Editor : Jquery error ?

Hello,
Fresh installation of WP, first page with Elementor, everything brand new. I’ve read the full documentation, installed default WordPress Theme, deactivated all plugins, add lines in .htaccess (SubstituteMaxLineLength 10M) but I still can’t edit the image widget (or image box) with Elementor, the menu on the left bar stays grey. The console shows following on click on “Edit”:

common.min.js?ver=3.1.4:2 
TypeError: o(...).appendTo(...).menu is not a function
    at x.<computed>.<computed>._create (autocomplete.min.js?ver=1.12.1:9)
    at x.<computed>.<computed>.x.isFunction.r.<computed> [as _create] (core.min.js?ver=1.12.1:116)
    at x.<computed>.<computed>._createWidget (core.min.js?ver=1.12.1:116)
    at new x.<computed>.<computed> (core.min.js?ver=1.12.1:116)
    at HTMLInputElement.<anonymous> (core.min.js?ver=1.12.1:116)
    at Function.each (jquery.min.js?ver=3.5.1:2)
    at s.fn.init.each (jquery.min.js?ver=3.5.1:2)
    at s.fn.init.x.fn.<computed> [as autocomplete] (core.min.js?ver=1.12.1:116)
    at URL.autoComplete (editor.min.js?ver=3.1.4:2)
    at URL.onReady (editor.min.js?ver=3.1.4:2)
consoleError @ common.min.js?ver=3.1.4:2
onCatchApply @ editor.min.js?ver=3.1.4:2
run @ editor.min.js?ver=3.1.4:2
forEach.i.<computed> @ editor.min.js?ver=3.1.4:2
run @ common.min.js?ver=3.1.4:2
run @ common.min.js?ver=3.1.4:2
onEditRequest @ editor.min.js?ver=3.1.4:2
p @ backbone.min.js?ver=1.4.0:2
f @ backbone.min.js?ver=1.4.0:2
c @ backbone.min.js?ver=1.4.0:2
n.trigger @ backbone.min.js?ver=1.4.0:2
onClickEdit @ editor.min.js?ver=3.1.4:2
dispatch @ jquery.min.js?ver=3.5.1:2
v.handle @ jquery.min.js?ver=3.5.1:2

I have no idea where it can come from as this happens on a fresh installation with nothing more than Elementor activated. Something in the settings perhaps ? On server sie, last PHP version, everything fine.

Thank you for your help,
Marie

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