Importing Issue

Hiya, I've been trying to create cc photoframes using screenshots and The sims 4 studio. I have been using photoshop. I am able to use the sims studio to get the objects into photoshop and edit the photoshop image and then save it, However when I then try to impor the image onto the object in the sims studio I get this error -  Please help! -

The Sims 4 Studio - Version 3.1.6.3

System.AggregateException: One or more errors occurred. ---> System.ArgumentException: Parameter is not valid.

at System.Drawing.Image.FromStream(Stream stream, Boolean useEmbeddedColorManagement, Boolean validateImageData)

at S4Studio.Images.WindowsBitmap.LoadStream(Stream s)

at S4Studio.TC.ConvertData(String src_ext, String dest_ext, Byte[] convert_d, Boolean requiresAlpha)

at S4Studio.TC.ConvertData(String filename, String dest_ext, Boolean requiresAlpha)

at S4Studio.ViewModels.Generic.Sims4SwatchTextureBase.Import(String file)

at S4Studio.ViewModels.Generic.Sims4SwatchContent.<>c__DisplayClass66_0.<ExecuteImportTexture>b__0()

at System.Threading.Tasks.Task.InnerInvoke()

at System.Threading.Tasks.Task.Execute()

--- End of inner exception stack trace ---

---> (Inner Exception #0) System.ArgumentException: Parameter is not valid.

at System.Drawing.Image.FromStream(Stream stream, Boolean useEmbeddedColorManagement, Boolean validateImageData)

at S4Studio.Images.WindowsBitmap.LoadStream(Stream s)

at S4Studio.TC.ConvertData(String src_ext, String dest_ext, Byte[] convert_d, Boolean requiresAlpha)

at S4Studio.TC.ConvertData(String filename, String dest_ext, Boolean requiresAlpha)

at S4Studio.ViewModels.Generic.Sims4SwatchTextureBase.Import(String file)

at S4Studio.ViewModels.Generic.Sims4SwatchContent.<>c__DisplayClass66_0.<ExecuteImportTexture>b__0()

at System.Threading.Tasks.Task.InnerInvoke()

at System.Threading.Tasks.Task.Execute()<---