I have previously used envinject versions 1.13 and 1.17.
envinject always had problems with UNC paths in Windows.
I previously was able to escape these directories by using double slashes
However, one of the updates between 1.17 and 1.20 introduced functionality that updates the the "Properties Content" each time the config page is saved. So after I set my value to "\\\\", and save. If I load the page again, the value is set to "
". If I save and load again, this becomes "\".
This is a very serious issue that forced me to downgrade the plugin even though I really want the Mask Password fix.