When saving a sheet that has multiple tabs as a CSV, there is no warning that only one tab will be preserved. The document appears to save as normal, but when the file is reopened, only the last tab was properly saved, and the tab name is reset to the name of the document.
Created attachment 113827 [details] warning message I can not confirm with LO 4.4.1.2 and with Version: 4.5.0.0.alpha0+ Build ID: f09efe39da1a2a1cf89b718bc07ed75e0da1b602 TinderBox: Win-x86@42, Branch:master, Time: 2015-02-23_22:57:28 Warning is displayed. Closing as Worksforme. Feel free to set Unconfirmed status again if you have problem in version 4.4.1.2 or higher.