Hello and welcome to the community. 
The Issue
This is a Nvidia GPU issue. It’s quite well known after a Nvidia update and can affect many applications at random, WeMod on the rare occasion being one of them.
Troubleshooting
Aside from playing around with your Nvidia Control Panel settings and/or checking the manufacturer’s website for an additional update, you can try the following:
- Make sure WeMod is fully closed, including from the system tray.
- Create a shortcut for WeMod on your desktop.
- Right-click the shortcut, select Properties.
- Add the following onto the end of the “target” field under the Shortcut tab:
--disable-gpu
So that it looks like this:
C:\Users\YOUR_USERNAME\AppData\Local\WeMod\WeMod.exe --disable-gpu
Then try launching WeMod from this shortcut.
After doing this:
- If WeMod is improved after launching from this method, you can continue to use this shortcut until there is a fix from either Nvidia or WeMod.
- If WeMod is not improved or gets worse, simply delete this shortcut and use WeMod as you did before.
- If there is no change, please share the following details as requested by our colleague in another thread: The app keeps flickering - #11 by Chris.
Thank you, and I wish you a pleasant day.