I am trying to add the special windows properties to remember both position and
size. After I do this, the next time the window open the selected properties
are missing?

Right click on time -> more action -> config special win setting

Added both position and size properties, set bot to remember, click ok.

Operating System: openSUSE Tumbleweed 20210914
KDE Plasma Version: 5.22.5
KDE Frameworks Version: 5.85.0
Qt Version: 5.15.2
Kernel Version: 5.14.1-1-default (64-bit)
Graphics Platform: X11
Processors: 16 ��� AMD Ryzen 7 2700X Eight-Core Processor
Memory: 62.7 GiB of RAM
Graphics Processor: NVIDIA GeForce RTX 3080/PCIe/SSE2