I can NOT reproduce with a little snippet yet (working on it, but we don’t have 5.3.0 PRO in webix snippet website at the moment).
It’s about a simple button triggering a popup with menu inside. 5.2.4 PRO: OK, 5.3.0: KO. Details below.
If i enable webix.debug, here the result between 5.2.4 PRO and 5.3.0 PRO
5.2.4 PRO (work as expected)
[button@usermenu] event:onfocus
webix_debug.js:496 (2) [result, null]
webix_debug.js:491 [core@undefined] event:onfocuschange
webix_debug.js:496 (2) [result, null]
webix_debug.js:491 [core@undefined] event:onclick
webix_debug.js:496 [MouseEvent]
webix_debug.js:491 [menu@$menu2] event:onbeforeload
webix_debug.js:496 []
webix_debug.js:491 [DataStore@undefined] event:onparse
webix_debug.js:496 (2) [{…}, Array(3)]
webix_debug.js:491 [DataStore@undefined] event:onstoreload
webix_debug.js:496 (2) [{…}, Array(3)]
webix_debug.js:491 [DataStore@undefined] event:onstoreupdated
webix_debug.js:496 (3) [null, null, null]
webix_debug.js:491 [menu@$menu2] event:onbeforerender
webix_debug.js:496 [w…x.DataStore]
webix_debug.js:491 [menu@$menu2] event:onitemrender
webix_debug.js:496 [{…}]
webix_debug.js:491 [menu@$menu2] event:onitemrender
webix_debug.js:496 [{…}]
webix_debug.js:491 [menu@$menu2] event:onitemrender
webix_debug.js:496 [{…}]
webix_debug.js:491 [menu@$menu2] event:onafterrender
webix_debug.js:496 []
webix_debug.js:491 [menu@$menu2] event:onafterload
webix_debug.js:496 []
webix_debug.js:491 [popup@undefined] event:onhide
webix_debug.js:496 []
webix_debug.js:491 [popup@$popup3] event:onbeforeshow
webix_debug.js:496 Arguments(3) [button.webix_img_btn, null, true, callee: ƒ, Symbol(Symbol.iterator): ƒ]
webix_debug.js:491 [button@usermenu] event:onblur
webix_debug.js:496 [result]
webix_debug.js:491 [popup@$popup3] event:onfocus
webix_debug.js:496 (2) [result, result]
webix_debug.js:491 [core@undefined] event:onfocuschange
webix_debug.js:496 (2) [result, result]
webix_debug.js:491 [popup@$popup3] event:onshow
webix_debug.js:496 []
webix_debug.js:491 [button@usermenu] event:onitemclick
webix_debug.js:496 (2) ["usermenu", MouseEvent]
webix_debug.js:491 [compagnon_sidebar@sidebar] event:onmouseout
webix_debug.js:496 [MouseEvent]
5.3.0 PRO (broken, popup not shown, error in console)
[button@usermenu] event:onfocus
webix_debug.js:496 (2) [result, null]
webix_debug.js:491 [core@undefined] event:onfocuschange
webix_debug.js:496 (2) [result, null]
webix_debug.js:491 [core@undefined] event:onclick
webix_debug.js:496 [MouseEvent]
webix_debug.js:491 [menu@$menu2] event:onbeforeload
webix_debug.js:496 []
webix_debug.js:491 [DataStore@undefined] event:onparse
webix_debug.js:496 (2) [{…}, Array(3)]
webix_debug.js:491 [DataStore@undefined] event:onstoreload
webix_debug.js:496 (2) [{…}, Array(3)]
webix_debug.js:491 [DataStore@undefined] event:onstoreupdated
webix_debug.js:496 (3) [null, null, null]
webix_debug.js:491 [menu@$menu2] event:onbeforerender
webix_debug.js:496 [w…x.DataStore]
webix_debug.js:491 [menu@$menu2] event:onitemrender
webix_debug.js:496 [{…}]
webix_debug.js:491 [menu@$menu2] event:onitemrender
webix_debug.js:496 [{…}]
webix_debug.js:491 [menu@$menu2] event:onitemrender
webix_debug.js:496 [{…}]
webix_debug.js:491 [menu@$menu2] event:onafterrender
webix_debug.js:496 []
webix_debug.js:491 [menu@$menu2] event:onafterload
webix_debug.js:496 []
webix_debug.js:491 [popup@undefined] event:onhide
webix_debug.js:496 []
webix_debug.js:491 [popup@$popup3] event:onbeforeshow
webix_debug.js:496 Arguments(3) [button.webix_img_btn, null, true, callee: ƒ, Symbol(Symbol.iterator): ƒ]
webix_debug.js:7847 Uncaught TypeError: Cannot read property '0' of undefined
at result.show (webix_debug.js:7847)
at Object.<anonymous> (webix_debug.js:8929)
at Object.callEvent (webix_debug.js:575)
at HTMLBodyElement.<anonymous> (webix_debug.js:1121)
In the source code of 5.3.0 (webix_debug, line 7829), the variable this._last_size is undefined.
In the source code of 5.2.4 (webix_debug, line 7790), the variable this._last_size contain an array.
Btw, should be great to have 5.3.0 PRO in snippet GUI.