I'm currently using VSTO. Normally, when I load a new project, the first thing that appears is a worksheet that Visual Studio created automatically. But now, this page is totally blue, like this
When I try to debug the project as it stands, the workbook will be loaded, but the worksheet will not, like this
The last thing I did before having this problem was install Excel DNA in another project that I'm working on.
I've already tried to search for solution online but I haven't found anything.
I'm using: Windows 10 / Microsoft Office 365 ProPlus / Visual Studio 2017