This tutorial fromMiniToolhelps you remove the annoying issue.
Now, keep on your reading.
The following are some possible reasons for the Warhammer 40000: Space Marine 2 stuck on loading resources error.

This action can check and replace missing or corrupted files.
Find and right-clickWarhammer 40,000: Space Marine 2and chooseProperties.
Click theInstalled Filestab and click theVerify integrity of game filesoption.

Typedisk cleanupin theSearchbox and choose the best match result.
In the pop-up window, the system drive is selected by default.
you better clickOKto continue.
Now, check the files that you want to delete and click theOKbutton.
Now, you better clickDelete Filesto confirm that you want to permanently delete these files.
Now, lets see how to do that:
1.
Expand theDisplay adapterscategory and find the graphics driver.
Then, right-click it to choose theUpdate driveroption.
Next, chooseSearch automatically for updated driver software.
Thus, you had better replace HDD with SSD, which can bring better PC performance and game experience.
For more details, refer to this post How to Clone a Hard Drive to Another on Windows 11/10/8/7.
I hope that this post will be useful.