I'm having the exact same problem in 2011. Another user here has installed SP1 for 2011, and it did not fix it.
Brian
I'm also having this problem. On Friday, I created a shrinkwrap of an assembly with 15,000 instances of 1800 components. It reduced the memory footprint and I was able to work much faster in the top level assembly. This morning, I opened my assembly and a lot components were missing from the shrinkwrap. These components were primarily imported IGES files. If I open the shrinkwrap, it initially looks OK, but an update causes the components to disapear. The shrinkwrapped assembly has not changed. I tried to work in the asembly without updating the shrinkwrap, but the first time I placed a constraint between two components, which didn't involve the shrinkwrap, it went into a 20 minute update that lost the components.
I used the solids option for the shrinkwrap because I will probably have to create some section views. We have had problems with shrinkwraps crashing when creating section views, and the help states that shrinkwrap surfaces should not be used with section views.
I have the latest graphics driver, and I don't think it is graphics related because it consistenly occurs during the shrinkwrap update.
This is really bad because the missing components are ones that I constrained to when placing new components. Not only are all of constraints broken, I can't fix them. I am under a tight deadline, and I can't afford to lose a day's work.
Inventor 2010 SP3
HP Z400
Intel Xeon W350, 3.07 Ghz
ATI FirePro V5700
Windows 7 64
I tried logging a support request, but the new website is badly broken. So much for getting value for our subscription money.
LorenJ
I've also had a problem with shrinkwrap items disappearing when constraining components to them. Seems to be an intermittent fault as it only happens sometimes.
Same problem here!
Started when upgrading to 2011.
Open an assembly in LOD with shrinkwraps. Allmost blank screen. Open a subassembly- empty screen -> change LOD to master ( wait for 5 to 10 minutes ) and assembly becomes visible. No update or saving is required.
Open the main assembly again and previous subassemlys shrinkwrap is visible.
Do this for the other invisible subassemblys and you have your main assembly LOD with shrinkwraps completely visible like it should. No saving or update is needed. About 1 hour of working time lost. Close and open again. Random quantity of shrinkwraps invisible again.
This has been going on for allmost a year. Frustrating.
Any fix?
Or should we just ditch shrinkwraps and buy more powerfull computers...
Sorry if there has been more discussion on this elsewhere, but is there a fix for this yet?
I'm having the same issue in Inventor 2011 w/ 64-bit O.S.
HUGE WAIST OF TIME when the shrinkwrapped geometry just completely disappears while trying to update the file and that same file is used with constraints inside a separate assembly. You have to start all over again with hundreds of constraints and this is not acceptable.
PLEASE HELP! Thank you.
Does this "Hot Fix" cover or fix this issue?
http://usa.autodesk.com/adsk/servlet/ps/dl/item?siteID=123112&id=18361080&linkID=9242019
same problem here. shell assy won't shrinkwrap. only first base component stays.........
inventor 2012 sp2 64 bit
no solution found. bugger................
HELLO GUYS (CHIQUILLOS), THE SOLUTION FOR THIS ISSUE IS REMOVE ALL TEMPORAL FILES OF YOUR PC, INVENTOR SAVE THIS FILES AND CREATE THIS PROBLEMS. REGARDS . DARU
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