Gallery thumbnails are all X'ed out

@mooncake 

@lsnishi 

 Windows Defender may have started blocking Galleries in some way after its update, and it has happened before. You need to add not only Origin but also the game to the exceptions. To add the game to the exceptions you need to add two game files. TS4exe file and TS4_x64 file. Each of these files is in a different Bin and Bin_LE subfolder
The path to these files in Windows 10:
My computer> C drive> Program files (x86)> Origin games> The Sims4> game (search for letter g)> Bin and Bin_LE

https://support.microsoft.com/en-us/help/4028485/windows-10-add-an-exclusion-to-windows-security