There is a known issue in Zephyr for JIRA 2.6.0 where text entered into step fields is wrapped inconsistently and creates oddly broken lines that can be hard to read.
Affects: Zephyr for JIRA Server 2.6.0
We have established a stylistic change that is improperly being inherited in the fields and as such is causing this undesirable result.
A workaround is in place and can be applied by any user with Administration-level rights to JIRA.
1. Login JIRA as a user with Admin privileges
2. Navigate to Administration -> System -> User Interface and select Announcement Banner
3. Paste the below script in the Announcement text area and click Set Banner
4. Now navigate to test steps and check the word-break.
Please revert the changes if you find the script breaks any default styles.
If you run into any issues with this workaround or it does not work for you, please reach out to our support staff by opening a support case and we'll be glad to assist.