I recently open the download section on PTC's site (link: https://support.ptc.com/appserver/auth/it/esd/product.jsp?prodFamily=MCD ) and see the following message:
"VERY IMPORTANT: Critical issues with Mathcad 15.0 M040 in handling matrices with 256 or more elements.
Please refer to
CS218119 - Warning: an unrecoverable read error has occurred. xx regions could not be read from this document while opening specific worksheets in Mathcad 15.0 M040: http://support.ptc.com/appserver/cs/view/solution.jsp?n=CS218119
CS217297 - Error "Operation aborted: max-element-depth constraint violated" occurs when evaluating big matrices in Mathcad 15.0 M040: http://support.ptc.com/appserver/cs/view/solution.jsp?n=CS217297
PTC will release a new maintenance release Mathcad 15.0 M045 that would address these issues soon."
Looks like somebody was listening, Vladimir. 🙂
Became known to the preliminary release date of Mathcad 15 M045 service release - December 2015 (according to the calendar, link: http://support.ptc.com/cs/product_calendar/PTC_Product_Calendar.htm#RANGE!A549 😞