tucsonnatureshop review for Retail Barcode Labels

The app doesn't sync well at all. I'll generate bar codes, select them for printing, only for them to disappear, show up as duplicates, etc. which interrupts our workflow regularly. In addition, not sure if this is the fault of this app or Shopify in general - we have a lot of barcodes that will disappear or overwrite with a new barcode seemingly randomly, making ringing up items in our onsite location extremely time-consuming. It also really affects our ability to keep track of inventory accurately. Edit: None of the solutions offered by support (which is just AI) work, while the errors persist. Is there any way that we can send tickets to Shopify support, so that these errors can actually be worked on and fixed, instead of just blaming the user every time barcodes disappear, are overwritten, don't work, print out $0.00 etc.? Or are these issues part of the app? This is incredibly frustrating to deal with and makes Shopify borderline useless for on-site retail operations. We are looking into POSes with better support.