Old image residue after lv_img_set_src()

How-to
1

Hi,
I faced a one-time issue where an old image’s part didn’t clear after updating the image source.

Initially, I called:

lv_img_set_src(leftTempValue, PNG_RES_PATH(“hi”));

and the screen correctly showed “HI”.

Later, I updated it with:

lv_img_set_src(leftTempValue, PNG_RES_PATH(“22”));

The new image (“22”) appeared, but part of the old image (“I” from “HI”) was still visible on the screen.
It happened only once and I couldn’t reproduce it again.

image
image1110×676 54.6 KB

Is there any recommended API to call before lv_img_set_src() to ensure the previous image area is always properly cleared or invalidated?