Not sure what happened, but while moving the camera and canvas around just before we ended up prefabing the camera, it seems to only show the level canvas as VERY small in the BG. I have gone over the videos and other video’s prior trying to figure out what setting is wrong, but i see nothing different!
In Scene mode, you can see where the UI elements should be, but instead i get a very small speck in the middle. Images attached.
the only thing that I can see that looks strange is the grass tile transform, maybe try resetting the transform and see if that helps.
Here is another strange oddity…i downloaded and opened the completed files on GitHub as its own game - The grass is
doing the same thing! So this must be a preference somewhere that isn’t set proper. Any clues or ideas?
In case anyone else has this issue - it had something to do with a glitch with the Level Canvas render mode - Even thought it was set to World Space, switching it between the three options and back to World Space, it corrected the rendering.
hey sorry I didn’t get back to you, I didn’t receive a notification when you replied. glad you have it working again now.
I updated Unity and then I just got the same problem. Thanks for the solution. 
Wow, same problem was here. I thought I made a mistake, I almost started to write an issue, but found this. Thx guys for sharing!
I have the same problem, but the solution doesn’t seem to work for me. (Unity 5.4)
Keep cycling them. You have to do it in a certain order, so try all options
after all other options.
I solved the problem by keeping the Z scale for the Level Canvas on 1 instead of 0.
Thank you Bryan, I had the same problem and menu cycling worked.
Holy hell, you’re a life saver!!! My brain was hurting trying to figure out why my scaling was off as well and the Lizard appeared to be 100x bigger than everything. Changing the Z scale to 1 instead of 0 corrected the problem. Now I’m free!!!
Well, I guess there’s a reason it’s called Glitch Garden then…
There is a glitch in Unity 5.4xx using World Space. I have spent 3 weekends trying to figure out why the Game View was not displaying the Canvas (background). I would place the focus on any textbox in the canvas’s Rec Transform and the background would temporarily appear. So I thought I miss calculated the grid system because I am not using the same image as in the videos. When I ran the game every thing is working as expected. I tried changing the layers, z indexes, even the suggestions offered in this topic with the same results. I changed the sizes to the ping image nothing was solving this annoying issue. So finally I decided to get the latest version 5.5. Now everything is working as expected. As Todd mentioned there is a good reason to call the game Glitch Garden…
I’ve had the same problem too! switching between Canvas Render Modes did the trick, you’re a genius! 
I can’t seem to fix the issue, I’ve tried cycling between the rendering a lot, I’ve tried resetting transforms I’ve rebuild it from scratch tried scaling it down that didnt help either. On the scene view everything looks fine but on the game view it looks like a mess.
I can increase the camera size which kind of fixes it(not really).
EDIT: Ok after multiple times of cycling, destroying the canvas and starting over and re-scaling I finally have it looking good in the game scene as well.
For my fix I had to set the scale of the Canvas to X 0.0111 and Y 0.0111. I have no idea how this will affect the game later on but will find out. I made sure it scales well from 4:3 to 16:9 though.
I had the same problem. Did the lecture again and saw that the value’s of the x- and y-scales were not permanent. They returned to the original values of 1. Then I remembered to push the return-button after setting the 0.0075-values. Problem solved.