I've just upgraded from Labview 8.2.1 to 8.5.1. I have a reasonably large program consisting of the main program (>1000 vis), and about a dozen other smaller programs being called dynamically.
The issue I'm having is that loading (just opening) the labview project that contains all the programs is very slow (~3 mins to load). If I try to open any of the vi's from the project explorer, regardless of how large the vi is, it can take >2min to open. If I open the vis directly (not from the project explorer) they load normally (few seconds).
In 8.2.1 loading the project and open vis from the project explorer is very fast. I've tried mass compiling the entire 8.5 directory as well as all the vis in my programs, with no change.
I also ran an experiment when I created a new project. I added just one very small vi program. Loading speed was very fast. I then added the vi for the top level main program which has >1000 subvis. Loading the project and opening the vis from the project is now very slow (~1-2min). It seems like if you have a vi which calls a large number of subvis it makes working with the project explorer very slow.
I've started an inquiry with NI (#7194102) but haven't been able to fix it yet. Hopefully someone else has seen this issue and can help.
Thanks,
James