You're making a dress, so the weights and uv_1 must be transferred from the dress ( of the same lengths or a bit longer, not shorter). A dress will have smoother transition between the vertex groups of the right and left sides of the body
PLEASE FOLLOW THE RULES OF CREATOR HELP:
describe your problem and provide a picture of it (if possible);
provide download link(s) to .package and .blend files.
If you have a Gmail acc, you can host all of the above on Google Drive
If you are having problems seeing the CAPTCHA, please clear your browser's cache and cookies and ensure that you do not have any browser addons or extensions that interfere with the display of the CAPTCHA. Then, close the CAPTCHA window and click on the register button to open the CAPTCHA again.