You have a problem opening a ACA/AMEP project or slow application start-up (I’m talking 10+ minute slow) on a given machine. This is specific to a user/machine and others using the same project are OK.
A possible cause;
The problem may be a bad personal Project Profile.aws file. By default Tool Palette Group information is written to the profile.aws files in the current user profile. This action only occurs when you open a project in the Project browser.
If the .aws is corrupted it can cause an error when the project is accessed by that user. If the project was active when ACA/AMEP is closed down the next startup will also be very slow or fail.
Deleting the users personal ProjectProfile .aws file for the problem project will restore access on that machine. With ACA/AMEP closed browse to this folder in explorer;
%userprofile%\Application Data\Autodesk\[ACA/ADT version]\enu\Support\Profiles\ProjectProfiles
You’ll see a non-project profile “ADTNonProjectProfile… .aws” and project specific profiles with names like “204DA426_95AA_49B6_A42E_4AB29C169962.aws”.
Make a copy, so you can restore if needed, & delete the .aws file. You can delete them all or open each.aws file with Notepad to see which project it relates to. The “Name=” value will match the project name. Then just delete the problem project’s .aws.
If I've had any problems with start-up on a given project & specific machine it's helped.