CCleaner 5.1.6 from rapps black box instead checkbox caption

reactOS 0.4.7RC1
(I did already noticed in 0.4.6RC1)

-start the program
-hit button "analyze"
-hit button "run cleaner"
A messagebox will popup.

The checkbox has a caption with is a black box instead of text.

Expected result
2K3_SP2_ok.png