If leaves are not showing under Apply leave page for the respective employee, then follow the below steps

Employee >> Leave info >> Current Year (e.g. 2022) and check whether CYL (Current year Leave) is added for the leave types or not. Then, enter CYL (Current year Leave)  and Update it.

In case, "Leave info" is empty for the selected year. Then, follow this link to allow/entitle leave for the new year  (e.g 2022): 

https://help.peoplecentral.co/portal/en/kb/articles/how-to-do-leave-update-for-new-year