Integrate IMCE module

I have installed https://www.drupal.org/project/imce on fresh Drupal 8 setup with https://www.drupal.org/project/ckeditor_uploadimage enabled. I tested the following scenarios:

• dragged and dropped an image on new article body field
• dragged and dropped an image on existing article body field
• dragged and dropped multiple images on new article body field
• dragged and dropped multiple images on existing article body field
• copied and pasted an image on new article body field
• copied and pasted an image on existing article body field

... and I didn't experienced this two image buttons issue in any of the scenarios above.

Please find below 3 scenarios and how I can reproduce this issue (Clean Drupal 8.2.6 install only with CKEditor Upload Image 1.2 [+ dependencies] and IMCE).

Scenario 1

In this case, Drag & Drop works fine but I haven't access to IMCE.

Scenario 2

If I add the IMCE button, I have access to both, Drag & Drop and IMCE file manager but I have two same icons.

Scenario 3

If I remove the standard button from Drupal, Drag & Drop doesn't work anymore and the CKeditor Plugins editor disappear.

In my mind, it seems to be a logical behavior as far as removing the standard button "disable" the image upload feature.
That's why ideally we would need the one with the core image dialog to disappear without disabling the file upload feature.

Thank you for the detailed step by step instructions. I was able to replicate this issue. This is a feature request because CKEditor Upload Image module needs to be integrated with IMCE module.

Hi, I have already completed this feature request. Follow the scenario 3 above posted by InPhoenity at:
https://www.drupal.org/node/2852480#comment-11953129
The Drag & Drop should work now. As for the "CKEditor plugin settings" it disappear because the IMCE don't have settings.

If you need to change the core "image" settings which also the settings of this ckeditor_uploadimage module, follow the steps below:

1. Temporarily add the core image:
   
2. Then change the configuration values of this core image plugin to your desired settings.
3. After that remove the core image:
   
4. Click "Save configuration" button.

Thank you @InPhoenity for providing detailed steps to replicate, @birdsnbees for queue support and @stefan.r for reporting and sponsoring this feature request.