Excel copy and paste breaks once again after Microsoft update
Microsoft has reintroduced a copy-and-paste bug in Excel 2016 through its latest update, marking the second occurrence of this issue within a month. The problem stems from KB5002934, which superseded the previous KB5002665 update that originally patched the same bug. The malfunction occurs specifically when users attempt to copy and paste within workbooks containing conditional formatting. While Microsoft has confirmed the issue affects only a small subset of Excel users, the rapid reemergence of the same bug raises questions about the company’s update testing procedures. This recurring problem suggests potential gaps in regression testing, as the identical functionality was supposed to have been fixed and verified in the previous update cycle.