If you suddenly cannot type A, W, S, D on your keyboard, maybe these keys were actually remapped to arrow keys. This could happen during playing a game. Most keyboard can fix this if you press [Fn] key and then [w] key holding both pressed. This should switch the mapping of the keys back to letters and arrows. More in this video here:
Windows key not working This can also happen. And I managed to sort it by pressing [Fn] key and then [Windows] key.
Maybe you were wondering why objects wireframe is not pink anymore in Maya 2019 - when this object is not directly selected but it is somehow affected by the selected object(s). This is called Highlight Affected and is Off by default in Maya 2019. Also you cannot turn it back On in Preferences anymore. This feature was also moved under new menu: Display > Animation > Highlight Affected
I`m not a modeller, but rigging is very close so this was interesting to see and some cool results from people using this FORGER App. This demo was done by Alex Huguet. The application website: https://forgerapp.com