Form Control (Push Button) properties disappear when re-opening spreadsheet

I added a Form Control button to my spreadsheet (version 24.8.2.1 downloaded today), gave it a name, changed it’s background colour, and added a macro I’d recorded to run when the mouse was released. It all seemed to work fine, so I saved my spreadsheet, and it still all worked. However, when I closed the spreadsheet down, and re-opened, the button is still there, with the correct name, but the background colour has defaulted to a kind of standard grey colour, and the macro I added to the control is no longer part of the control. Has anyone else had this issue recently? Interestingly, I’d been having problems earlier today where the button disappeared completely, on the previous version I had (can’t remember the version), so maybe they’ve partially fixed it. Thanks

What file format are you using?
Always use the native, international standard ODF file formats fpr the files containing special features like the Macros, Form control elements.