I am experiencing this exact same bug! As a small business owner, having a reliable invoice and online checkout system is absolutely critical. When the app won't let you complete basic billing tasks, it completely disrupts the workflow and hurts our relationship with customers. I run a family-focused business selling physical books and educational resources at https://rosyposy.club/ and I rely heavily on smooth invoicing to keep things running. Intuit needs to prioritize and fix this glitch immediately!