Unable to login with new FitNesse version release with Appian 17.3

Scripts were working fine with older version of FitNesse however since I have migrated to new FitNesse version released with latest Appian version I am not able to login. Looks like something is wrong with latest FitNesse Jar files. One observation is in previous version button name on login page used to be 'SIGN IN' and now its 'LOG IN' not sure if that it has been handled in new version FitNesse version.


script that was working earlier was :

!| script                     |
| login with username| USERNAME |



Can someone please help here.

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