Why sometimes modal dialog isn't shown imidiatly after choise menu "upload"? Sometimes I need click twise.
Can you please specify the Webix version and the browser where the problem occurs?
webix UI v.3.3.17
What about my question?
Unfortunately, we can't repeat the problem in 3.3.17 (nor in the actual 4.2.14). However, it's a quite old version, so I suggest you update to the latest Webix.
Please try to include the debug version of the library (webix_debug.js instead of webix.js) and check what's happening when you click "upload". Is there any error/warning? Does the onbefore/onafteruploadfile events occur both?
It looks like you're new here. If you want to get involved, click one of these buttons!