Download the attached Rar file, and extract the files to UniLogic installation directory. This means that the "UniLogic Diagnostics.exe" (and all the other files) must be placed in the same directory where "Unitronics.Shell.UI.exe" is located (usually at: "C:\Program Files (x86)\Unitronics\UniLogic\")
After you've extracted the files, run "UniLogic Diagnostics.exe" and click on Diagnose.
Most chances that it will show "SQL Instance" as one that has problems. In case it find problems, the "Fix" button will become enabled. Click on Fix, and the program will attempt to fix the problem, and then it will re-diagnose the problems to confirm that they are fixed.
Please tell me what problems it found .
Also tell me if it managed to fix the problem that you're experiencing with UniLogic (that it is stuck in loading components).