If working on replacing any parts, consult the corresponding issue page to be informed of potential problems when working!
Various known issues with operation of the Mask Aligner or replacement parts. Most of these issues are fixed currently, but are still listed in case the problems reoccur. If repairing or replacing parts, consult the corresponding issue page to be informed of potential problems!
## Major Issues
If Major Issues appear, as they have in the past, they need to be fixed ASAP:
-[Misalignment of piezos over time](Known Issues/Piezo Misalignment)
