Okay, I can’t seem to get Projection Master to work in ZBrush 4R5 on OSX. Every time I attempt to drop a tool to the canvas, I get the following error:
ZScript Note: Interface item could not be found.
SCRIPT: ProjectionMaster.txt
ERROR: texture:inventory:width
IN: [IGet,texture:inventory:width]
Any ideas?
PS. Still works under 4R4.
edit: fixed topic.
I am having the same problem, just submitted a ticket for this question.
Thanks for posting as well!
Rod
Glad to hear I’m not the only one. Thanks for chiming in.
Let’s hope this is an easy fix that they can squeeze into an early January patch.
I had this problem too! It’s driving me crazy! Glad to hear I’m not the only one.
Yes, it’s a known issue at this time. They are aware:)
Hi, I have the same problem. Is there anything new to that issue? Any solution? Or when is it expected to be solved?
Best wishes
No more news than this.
https://support.pixologic.com/index.php?/News/NewsItem/View/26/zbrush-4r5-known-issues
We’ll just have to be patient and wait I’m afraid. 
Has there been any more news on this? It’s the middle of march. Could this be that big of a problem that it would take 4 months to fix?
Projection Master used to be a huge part of my workflow, but now I’m using mudbox to do my projection painting, since I don’t have any other choice (there are too many modelling features in Zbrush 4R5 for me to downgrade, but it’s a hard choice to make). I really would just like to stop using mudbox and go back to the more robust feature set of Zbrush, but I really need projection master to work first.
Have you tried using the latest version of ZAppLink_4.0? It’s been updated since the release of ZB4R5. Download the updated version here:
http://pixologic.com/zbrush/downloadcenter/zplugins/#zbrush4r5.php
Follow the instructions to replace the old one.
Hope that helps for now:)
Rod!
www.screamingimages.com
Projection Master isn’t ZAppLink. He talk here about Projection Master. I’m also patiently waiting, but now it’s about time. It is one of the most important thinks for me in ZBrush. 
It’s not ZAppLink. We’re waiting for a solution, not a work around. MudBox is my workaround. I don’t want to, but what can you do. It wouldn’t be so frustrating if Pixologic’s response was anything other than saying “It’s a problem, deal with it,” and saying that four months ago.
And you can’t enter ZApplink without being in Projection Master first. Trust me I’ve been missing ZApplink in my workflow too.
Well I guess I’m not getting an update, since the official word from pixologic seems to reek of “We don’t care.” This is a major bug with the OSX version and it’s amazing it’s not addressed!
I’ve been patient but it’s been close to five months! Is there any official word from pixologic on a bug fix release?
Yeah, it’s quite unfortunate we’re being left hanging with neither fix nor information.