What do you mean by “export,” @friendlyfaces? You need to be specific if you want help, because sales invoices cannot be exported from Manager. They can be printed or emailed.
As far as @Zark’s answer goes, there was a bug with how the screen displayed immediately after the navigation menu expander feature was introduced, but it was immediately corrected. So if you have fallen prey to that, @Zark’s solution will fix it.
Thanks for your quick replies. The new version fixed it. I’m sorry I didn’t try it. I assumed (clearly wrongly) that my version was up there with the latest.
It was just a fluke that you got caught with a bug that was fixed, I believe, within a day. Manager advances very rapidly. Sometimes there are multiple new versions in a single day, especially after new features are introduced and bugs are reported.