@kdemeoz,
You made a big mistake you've wiped Mint KDE 17.3. With me Mint 17.3 distro is the primary, is supported by 2019. Mint18 and Kubuntu 16.04 with the new backport plasma 5.8.5 are totally unstable and many options do not work. Manjaro and openSUSE are so far the most stable version of the Plasma 5.8.5.
You made a big mistake you've wiped Mint KDE 17.3. With me Mint 17.3 distro is the primary, is supported by 2019. Mint18 and Kubuntu 16.04 with the new backport plasma 5.8.5 are totally unstable and many options do not work. Manjaro and openSUSE are so far the most stable version of the Plasma 5.8.5.