JCE editor (2.6.15 and 2.6.14) fails to load at frontend with Simple Email Form plugin

[geriguy43]

With the newest (updated) version of JCE editor, the textbox of Simple Email Form are fails to load.

You can check. Here the textbox renders good: http://bestmachinery.hu/foldmunkagepek (JCE editor 2.6.12)

Here it isn't: http://bestmachinery.sk/stroje-na-zemne-prace (JCE editor 2.6.15)

Plugin's github page: https://github.com/andrewscaya/mod_simpleemailform/tree/stable

[ryandemmer]

I have tested this and it works if you set the Form Type to JForm.