Hello Amit,
In the affected org, have you updated out of date themes since upgrading the Skuid version? This is a necessary step post-upgrade, and often will cause visual issues like this if it hasn’t been done. To see if this is necessary, check for the “Update Out Of date Themes” button on your Themes list - it will only show if themes haven’t been updated. Let us know if you continue to have trouble after trying this step.
-Mark
