The new version of apso.oxt (1.50) does not work in Libre Office Calc on Windows 11. Neither calling the apso window from the Calc menu nor the key combination shift F11 works.
This is a Windows issue, in Linux it works well.
It does work for me on Windows 11 (LibO 24.8.7.2; 25.2.3.2 and 25.2.4.3).
“Alt+Shift+F11” is not displayed in Tools ⟶ Macros next to the “Organize python scripts” item.
There are two ways to call the apso window using the tool menu and the other way is the short cut alt+shift+F11.
After a new attempt to install apso 1.50 all went well now. So there is no issue anymore! 
Good for you!