Stretching of Texture

I am working on an UI in UE4 and changing content of field using an outside php link.

Problem : When im using a 3rd party webhost as my text changing link , texture behind the text is fine and normal as it should be . (image included)


But when using localhost php link , texture expands abnormally and text is showing partially.



Is there any specific reason for that , or any setting that can be manipulated in UMG to stop stretching of texture.
yellow band is a seperate texture which is moving along with text in an animation.

Any help is appreciated.

Comment if you want to see any specific setting !