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Project data & BIM
About BIM-based management of attributes, schedules, templates, favorites, hotlinks, projects in general, quality assurance, etc.

Custom Property Expression


I had an odd thing happen with an expression.


It just stopped working.
In the expression editor it gave no error.
In the object properties is said:


I opened a backup copy of the file and copied the expression and then pasted it into the project where the expression had stopped working and then everything was fine....fixed like new.


Any thoughts anyone????

Gary Ford
Self Employed - Modeling, Estimating, Construction
Archicad 12-26
AMD Ryzen 9 5900X 12-Core Processor
3701 Mhz, 12 Core(s), 24 Logical Processor(s)
(RAM) 128 GB
Marc H

Did you figure it out?  Way beyond me (novice AC programming at this point, especially with a nested conditional? ;-0) .  I’ll offer a thought gained from a few other experiences over the years with apps: maybe the session did not load an ID or value on start or lost it at some point.  Then, the subsequent ‘open’ loaded it, allowing the expression to ‘evaluate’. 

“The best thing about the future is that it comes one day at a time.” - Abraham Lincoln

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