A Form that includes a text field has a character escaping issue where, if the text submitted for the field includes an apostrophe (or single quote) then the created post will add a backslash before the apostrophe.
This is fixed in version 2.6.9 of Forms.
Please, do something for this quickly.
The fix for this issue will be included in a hotfix that should be published early next week.
I’ll update here when it is available.
Version 2.6.9 is now available with the fix for this issue. If you do not see an update notice in your plugins page click the registered link from one of the Toolset plugins to go to the custom installer page, then click the Check for Updates button.