@cucubano
As to your issue with the render globals tab being blank, and getting that error:
Error: file: C:/Program Files/Autodesk/Maya2017/scripts/others/unifiedRenderGlobalsWindow.mel line 327: Object 'tabForm' not found.
It looks like either your Maya Prefs. are corrupt, and resetting them might cure the issue.
If not, you can try this:
1 Open up the script editor
2 Type in the following:
deleteUI unifiedRenderGlobalsWindow;
3 Highlight the MEL code and hit enter (the one beside the keypad, not the main one).
Type in the following:
buildNewSceneUI;
Highlight the MEL code and hit enter (same key as before)
Open up the render settings window again.
This should reset the window, please let me know if this helps.
Good luck
