Hi vwzombie,
Adding or removing validation shouldn't affect whether your form field is visible or not.
When you edit your form to add or remove validation, are you clicking the SAVE PROPERTIES button (found at either the top or bottom of the form properties or element properties screen) and saving your form to ensure that the changes you make are being saved?
With respect to the second part of your post, that's a text error in the file which will be fixed in the next upgrade. It should NOT be affecting your forms either.
Can you give me more details on how you're editing your form? Or point me to a URL maybe?
Thanks,
Terry