Has anyone come accross this error? I found it when I was changing the password for a site admin. This is the stack trace from the sitelog:
DotNetNuke.Services.Exceptions.PageLoadException: Bad Data. ---> System.Security.Cryptography.CryptographicException: Bad Data. at System.Security.Cryptography.CryptographicException.ThrowCryptogaphicException(Int32 hr) at System.Security.Cryptography.Utils._DecryptData(SafeKeyHandle hKey, Byte[] data, Int32 ib, Int32 cb, Byte[]& outputBuffer, Int32 outputOffset, PaddingMode PaddingMode, Boolean fDone) at System.Security.Cryptography.CryptoAPITransform.TransformFinalBlock(Byte[] inputBuffer, Int32 inputOffset, Int32 inputCount) at System.Security.Cryptography.CryptoStream.FlushFinalBlock() at System.Web.Configuration.MachineKeySection.EncryptOrDecryptData(Boolean fEncrypt, Byte[] buf, Byte[] modifier, Int32 start, Int32 length, Boolean useValidationSymAlgo) at System.Web.Security.MembershipProvider.DecryptPassword(Byte[] encodedPassword) at System.Web.Security.MembershipProvider.UnEncodePassword(String pass, Int32 passwordformat) at System.Web.Security.SqlMembershipProvider.GetPassword(String username, String passwordAnswer) at System.Web.Security.MembershipUser.GetPassword() at DotNetNuke.Security.Membership.AspNetMembershipProvider.ChangePassword(UserInfo user, String oldPassword, String newPassword) at DotNetNuke.Entities.Users.UserController.ChangePassword(UserInfo user, String oldPassword, String newPassword) at DotNetNuke.Modules.Admin.Users.Password.cmdUpdate_Click(Object sender, EventArgs e) at DotNetNuke.UI.WebControls.CommandButton.RaiseClick(Object sender, EventArgs e) at System.Web.UI.WebControls.LinkButton.OnClick(EventArgs e) at System.Web.UI.WebControls.LinkButton.RaisePostBackEvent(String eventArgument) at System.Web.UI.WebControls.LinkButton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) at System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) --- End of inner exception stack trace ---