I fresh installed PI (64) on a new Laptop and installed all updates. The script is missing, too. I found the scipt in the PI folder in subfolder and added it now as discussed here. So when I now try to run the script it says:
Processing script file: C:/Program Files/PixInsight/src/scripts/BatchPreprocessing/BatchPreprocessing.js
*** Error [000]: C:/Program Files/PixInsight/src/scripts/BatchPreprocessing/BatchPreprocessing-GUI.js, line 820: Error: ProcessInstance.iconsByProcessId(): unknown process class: 'CosmeticCorrection'
Never had such problems before on my main PC.
Thanks,
Tobias
Edit: I just started PI in the reset mode and now it seems to work... lets see....