Some browsers automatically added the latest data you entered to the different form fields.
This can be any field even an image field (duplicated images).
If you experience this problem, you need to disable the automatic form completion in your browser or use a different browser to use our system.
Chrome browser do this often, so we recommended use a different browser.
Or you can simply disable autofill, here you have instruction for any browser:
https://support.iclasspro.com/hc/en-us/articles/218569268-How-Do-I-Disable-or-Clear-AutoFill-AutoComplete-Information-