Appium desktop inspector is not identifying the elements

a. I have installed appium desktop client version 1.17.1
b. I have one classic windows application to inspect.
c. What I am doing here is , opening the appium desktop client, starting the server v1.17.1
d. Then I am choosing custom tab
e. I am providing the desirable capabilities as

app= path of the application
PlatformName = Windows
DeviceName = WindowsPC

e. Now I am starting the session
f. Here appium does launches my application successfully
g. Preview is shown in the appium window
h. I am clicking on select element icon
i. But when I hover the mouse over the preview in appium window , it is not identifying my elelments

Can anyone help me with this?