Hello,
The fix mentioned before should be applied only to TC 7.52. If you are using TC 8, it's necessary to restore it. If you have created a backup before applying the fix, use this backup. Otherwise, reinstall TestComplete to restore the original version of the tcClrHook.dll file.
Try disabling the "*" option in the project MSAA settings. If the problem remains, please create a new project suite and record a simple script with the tested application. Then pack the entire project suite and send it to
Support. In addition to that, tell us the exact version of TestComplete you are using (Help | About).