When defining \headlogo or explicitly setting ddcfoot to a non-false value (e.g. ddcfoot=color), the DDC logo goes into the footer of title pages. While the main title page does not have a page number, the part title page does, which then overlaps with the DDC logo.
Unfortunately, I did not find a way to disable page numbers or the DDC logo on part title pages only.
MWE:
\documentclass[
ddcfoot=color,
]{tudscrbook}
\begin{document}
\part{Hello, World!}
\end{document}
Result:

Version info
+------------------------------------------------------------------
| Corporate Design of Technische Universitaet Dresden
| Class: tudscrbook
| Version: 2021/07/15 v2.06n TUD-Script
| Author: Falk Hanisch (hanisch.latex@outlook.com)
| Repository: https://github.com/tud-cd/tudscr
| Forum: https://latex.wcms-file3.tu-dresden.de
+------------------------------------------------------------------
When defining
\headlogoor explicitly settingddcfootto a non-false value (e.g.ddcfoot=color), the DDC logo goes into the footer of title pages. While the main title page does not have a page number, the part title page does, which then overlaps with the DDC logo.Unfortunately, I did not find a way to disable page numbers or the DDC logo on part title pages only.
MWE:
Result:

Version info