I saw there is another error on Tcalex
As you can see here I have a small calendar at left and tcalex at right
Mounth view
Run ok .
If I show the mount view December and press the black arrow then it change also the small calendar I have at left
Week view
Run ok .
if I show the week view and press the black arrow then it change also the small calendar I have at left
Day View
Problem.
If I show the day view and press the black arrow then it not change also the small calendar I have at left
I doubt there is an bug on tdayweek class
as you can see here