Unable to right-click-paste in TinyMCE fields in Tokyo without holding Ctrl - Known Error

Unable to right-click-paste in TinyMCE fields in Tokyo without holding Ctrl Description In Tokyo, it is not possible to right click and paste into an HTML field.

Steps to Reproduce

First way: 1. Open an existing change_request or incident record. 2. Click on the 3 dots (more options) at the top of page and select "Email" to open the email client. -- Note the body of the email is an HTML field (uses TinyMCE) 3. Use Cut / Copy or CTRL+C to capture some random text to paste into the field. 4. Attempt to right click in field to select "Paste" to paste some content into this field --Note there is no option to Cut / Copy / Paste from this field. 5. It is possible to use CTRL+V to paste the content into this field.

Second way (see recording attached): 1. Open a new kb_knowledge record / article -- Note that the Article body is an HTML field 3. Use Cut / Copy or CTRL+C to capture some random text to paste into the field. 4. Attempt to right click in field to select "Paste" to paste some content into this field --Note there is no option to Cut / Copy / Paste from this field. 5. It is possible to use CTRL+V to paste the content into this field.

In San Diego, the right click menu displays options such as cut/copy/paste, but in Tokyo it only shows "Link".

Workaround This is expected behavior and by design in all currently supported releases using TinyMCE v5. Starting from version 5 it is necessary to use control + right click to enable context menu.