Found a bug in Revit 2016

[Anonymous]

I hope this is an acceptable place to post about this kind of thing. I found a bug in Revit 2016. A wall join will not display correctly if you set a negative value in the Base Extention Distance parameter. A value of zero or a positive value will not cause a problem with wall joint display but a negative value will.

I checked in Revit 2014 and it does not suffer from this issue - wall joins will still display properly with a negative value in the Base Extension Distance.

I don't know where to do an official bug report - is there a way to report this to Autodesk?

[Anonymous]

OK. This is weird. It seems to be sporadic. I was trying to figure out a workaround for this issue (e.g. use another wall object to create a downward extension of brick) and decided to just use a base extension anyway and then using detailing to hide the graphical issues in plan. So I switched back to that method but now everything looks fine in plan - no graphical glitches.

[Anonymous]

Another update:

The problem occurs only when extending the layer on the exterior side of the wall. All the other layers of the wall can be extended and wall joins are unaffected. It is only when trying to extend the exterior-most layer (the layer at the very top of the wall assembly editor) that the wall joins get messed up.

[Anonymous]

Final Update:

After messing around some more I found out that there is really nothing to see here. This issue only appears in this one single building model that I am working on. If I start a new project I cannot replicate the issue. The model where the issue appears is a 2014 model upgraded to 2016. Perhaps it is something specific to that scenario, or perhaps it is something completely unique to the particular model I am working on.

Cheers.

[dbrainard]

This behavior is also exhibited in 2015 - I actually ran into this a month ago. I've also noticed that it tends to occur when mixing in walls that utilize a base extension offset (Ex: When pulling siding down to cover up a floor system). If you insist on drawing with multi-layered wall types (Interior finishes, structural core, exterior finishes all in one) then you may want to flush up your exterior walls to the floor level, then draw a seperate band of finish along the floor band. I have since adopted the practice of drawing my framing walls seperate from my exterior veneer walls to give me greater flexibility with visibility manipulation and material take-off (so you can edit the profile of a siding wall without punching a hole through the framing).