Steps to reproduce:

1. Open attached project "bug_image_fill_bug.rar"
2. Open scene "BugFill"
3. Make sure that "Error pause" is enabled in console and run the scene
4. Once scene is paused, in scene view inspect render texture and notice that it shows different image than is visible in scene view
5. Skip to the second frame and notice that Image displayed by RT changes

Additional steps
6. Stop the scene
7. Open "CompanyLogoPrinter.cs" and in line 39 change setLogoFillAmount to 0.001f
8. Run scene again and notice that this time correct image is displayed once scene is paused

Reproduced with: 5.3.5p1, 5.3.5p8, 5.4.0b25, 5.5.0a3
Not reproducible: 5.2.4f1, 5.3.5f1