WPE 2.38 - Thumbnail Images partially Displayed Black Before Fully Loading in Carousel slider

[gowthami-cl-infosys]

On RPI4 and also in sagemcom device using WPE 2.38 it is observed that thumbnail image initially displays only half of the image, with the other half appearing black after launching the app(eg:- tg4) through controler UI

Steps to reproduce:

1. Launch the UIController using a browser
2. Disable Resident App plugin and activate WebKitBrowser Plugin
3. Select WebKitBrowser plugin in the UIController
4. Set the Custom URL to https://smarttv.tg4.ie/
5. Once the app is successfully loaded, Start scrolling the carousel slider with thumbnails in the top of the Home page.

Thumbnail image initially displays only half of the image, with the other half appearing black. After approximately 2 seconds, the full image loads properly. This issue persists when scrolling to the next thumbnail. It seems like there's a delay or inconsistency in loading the image, causing a visual glitch.

Frequency:
100%

SW version:
root@m393-72180ZB-stb:/opt/logs# cat /version.txt
imagename:m393-72180ZB-stb_FBT_6.1.0-rc2_20240729175055
BRANCH=6.1.0-rc2
YOCTO_VERSION=dunfell
VERSION=6.1.0-rc2.07.31.24
SPIN=0
BUILD_TIME="2024-07-29 17:50:55"
WPE_WEBKIT_VERSION=2.38.2+gitAUTOINC+0ac2e6f2b6-r12
Generated on Mon Jul 29 17:50:55 UTC 2024
URSR_VERSION=23.0.1

Sample videos:
for RDK: https://github.com/user-attachments/assets/c1e72cae-aa83-481e-b5e1-c3c3f7ca0022
for sagemcom: https://github.com/user-attachments/assets/5e5fd395-9cd4-460c-934a-402b1a482279

Note: This issue is observed in the image which has RDK16 and WPE 2.38

[suresh-khurdiya-infosys]

@pgorszkowski-igalia Anything you can suggest that which module logs helpful for investigation?