Nice patch, but here are some things that happened to me:
1: Before patching save DBASE100 and DBASE400 to a separate folder, than after you have changed the controls, copy the 2 files back. It was necessary because with the US files the speech wasnt working properly.
2: In my case after the patch the game's colors were off. Dark places looked very strange. If this happened to you, open the roth.ini file, and delete the last line (brightness), that will solve the problem, dark places will be properly dark again:).
did you replace the files in both \DATA and the \ROTH folders (stupid setup in gog.version, it uses the data folder for cd-emulation, but could be done easily without it, only by some ini-tweaks)?