Hey there Wayne,
Been playing around (as per usual) and have some good news...
I've managed to get the text to display correctly in my WinUAE configurations for both "Renegades" & "Renegades Deluxe"
Here's what I've found (I'll use "Renegades Deluxe" as the example):
a) If I use a "KS ROM v1.3 (A500,A1000,A2000) rev 34.5 (256k).rom" I get an error when loading; "Renegades failed returncode 20" (see 1st attached screenshot).
b) This is why previously I had used "KS ROM v3.1 (A500,A600,A2000) rev 40.63 (512k).rom". The game loads / works but there is the text bug (see 2nd attached screenshot).
c) I then tried using other A500+ / A600 Kickstarts and now the game works without the text bug (see 3rd attached screenshot):
... "KS ROM v2.04 (A500+) rev 37.175 (512k).rom"
... "KS ROM v2.05 (A600) rev 37.299 (512k).rom"
... "KS ROM v2.05 (A600HD) rev 37.300 (512k).rom"
... "KS ROM v2.05 (A600HD) rev 37.350 (512k).rom"
So the bug seems to be related to using the "KS ROM v3.1 (A500,A600,A2000) rev 40.63 (512k).rom".
Tried "Renegades" with any of the above Kickstarts listed in "c)" and now the text bug is also gone (see 4th attached screenshot).