Two Esign tags displaying same when I try to eSign in pdf

Hi All,

I am using Adobe Acrobat Pro DC, I populated data from C# using acrofields. Regarding eSignatures, we have three Signatures in the pdf form. When I try to draw the first eSignature its ok but when try to second, the first one changed as it is like second one.

Can any one plz help on this.

Thanks

Bhanu