Character browser graphical glitch

We upgraded the graphics card drivers in our workstations recently, and now one of those PCs is displaying a graphical glitch when browsing characters. The characters either don't appear or the image is corrupted.

It seems to only affect the browsing of classic and modern illustrated characters. Photographic characters use a different dialogue to browse, and once an illustrated character is inserted, the image is not corrupted.

Is there a way of reinstalling the characters within Storyline 360?

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