Lesson 18, Practice 1 - Rotating the board causes crash

[oldmanbombin]

When experimenting, I inserted rotate(90), which rotated the entire output and caused the session to soft lock. I'm guessing the trigger point for the end of the code running portion of the practice is tied to a coordinate instead of a cell or something? I dunno, I'm new here, but we just learned about the dangers of while loops and stuff in the last lesson so... Irony?

Edited because I just realized the turtle never even moved, so probably not the trigger point deal I thought it was.

To Reproduce
Steps to reproduce the bug:

1. Go to Lesson 18
2. Click on Practice 1
3. Scroll down to insert rotate(90)
4. See error

Expected behavior
Expected the turtle to rotate 90 degrees clockwise, or an error

Information about your device (please complete the following information):

• Operating System: Windows 10
• Browser: Chrome