did some experimenting on this today. Copying to a local drive did not solve the probelm. Curiously though, when I changed the path for the tool palette, either to the local drive, or the network drive, the tool palette would switch between tabs seemlessly. However, when I closed AutoCAD and started a new session, it was back to the lag between tabs.
It would seem to me that AutoCAD is reading the source file and checking for each block before displaying the tab. When the path is changed, it must do that check for each tab/block for the entire palette.
Possible solution would be to force AutoCAD to read the tool palette path on startup. No idea how to do this though.
Response from AutoCAD Customer support:
Thank you for your update. Researching this case further I was able to find that a case has already been logged with development concerning the speed issue with tool palettes. Apparently the DWG file has to be opened before the images are displayed as an icon. Depending on the location of the DWG (network or local) and the size of the DWG, there may be a lag involved. Keeping the source files local will help speed things up. The slowness only occurs the first time the tool palette tab is opened. After the first time the tool palette tab is accessed, subsequent accesses should be instantaneous. Unfortunately there is no known workaround for the issue. I have linked this issue with the development report.
Per process I will be closing this case out, but please know this is on the front side of support. Behind the scenes this will remain active and further investigated by our development team here for future consideration in updates and product releases.
I have found through my own testing that once I start AutoCAD, if I load any other profile then switch back to my custom profile, the tool palette works perfectly.
We've ahd the same problem and this is the only solution that works. Load a different palette then switch back.
Nielsen Madsen & Barber S.C.
Civil Engineers and Land Surveyors
I've just run into the same issue with custom palettes on a network drive. This thread is the only reference I could find to the issue. Did anyone every find a solution?
No, I never received an answer. The only thing that seemed to work was to turn off anti-virus software when you are using AutoCAD.
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