We have recently identified a regression in 1.5.5 relating to pasting content into the rich text editor. We have updated the 1.5.5 download in the customer area to fix this issue and have marked it as 1.5.5a to indicate the change. Please note that it will still display 1.5.5 in your control panel.
If you are already running 1.5.5, you can resolve this by uploading these two files from 1.5.5a:
- js/redactor/redactor.full.js
- js/redactor/redactor.js
If you have not upgraded to 1.5.5 yet, you do not need to take any steps.