Printf() not printing floating point values in Nucleo f303k8 - Keil Studio Cloud

Dear mbed community!

I was trying to print a floating point value using printf in Nucleo f303k8, but it is not working..

The following sample code returns %0.1f instead of 0.1.

I tried the solution mention in

But, unfortunately, the mbed_app.json file cannot be saved after modifications in Keil studio cloud.

Could anyone help me identify the problem?