Text in the tutorials is not being displayed properly. Instead, the XML markup is being shown as displayed in the attached screenshot.
This does not occur in 4.12.5, and is a regression.
This occurs in 4.13 CL 3106830 and Main CL 3129233
Result: Notice the text not displaying properly as shown in the attached screenshot.
Head over to the existing Questions & Answers thread and let us know what's up.