OP with the problem description and how to reproduce is on the .org forum.
https://wordpress.org/support/topic/conflict-with-gravity-forms-57/
It looks like 2.6.2 inadvertently strips out Gravity Forms <script></script> and <style></style> tags .
Reverting to 2.6.1 makes the problem go away.
See the screen capture for an example of the error.
OP with the problem description and how to reproduce is on the .org forum.
https://wordpress.org/support/topic/conflict-with-gravity-forms-57/
It looks like 2.6.2 inadvertently strips out Gravity Forms
<script></script>and<style></style>tags .Reverting to 2.6.1 makes the problem go away.
See the screen capture for an example of the error.