When Rally has a full text field like Description or Notes that contains an empty <img> tag, it causes HTML to be shown on the Jira multi-line field and sometimes corrupts the display of Jira.
For example, the following HTML would cause problems in Jira:
It is difficult to see this in a Rally full text field in the user interface since the tag isn't rendering an actual image and it appears invisible. However, if you highlight the text, you may see evidence of it as shown below:
If you have this block like this then you can edit it out and attempt to resynchronize.
ConnectALL 3.4.0.1
DE116469
This will be resolved in a future build of ConnectALL
As a workaround, support can provide a script that will remove empty <img> tags prior to synchronization.