Bugs are found from time to time and in our effort to be trustworthy and transparent, they are posted here as well as appearing on the MASS Welcome Screen


The known bugs page has moved from the MASS website to the MASS section of the CMDC website.

Click here to visit the full list consists of known bugs in MASS.

This page will continue to be kept active as it was previously linked to from a number of other sources.

For questions about specific bugs, or to report a bug, contact mass@canadamasonrycentre.com.

Please do not hesitate to contact MASS technical support if you believe you have found a bug in the software.


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Brad Crumb

Brad is a Masonry Design Engineer with CMDC. Starting in 2011, his main role with the CMDC has involved developing the masonry design software, MASS, as well as handling the engineering related technical support questions that come in on a regular basis. If you've called or emailed the CMDC office about MASS, chances are you had the pleasure of meeting Brad.