v2.1.1393 works !
i closed EditPadLite, installed the new AxCrypt version, encrypted the file via Windows File Explorer, dbl clicked it [from Explorer or AxCrypt dashboard], edited it, then saved the file. no error messages.
until i closed EditPadLite, the little red broom icon displayed next to the file in the dashboard.
a slight inconvenience, but i can close EditPadLite after editing an encrypted file [i dont plan on encrypting many, just my sensitive files].
p.s. wish i could edit my prior post instead of posting a new reply.