Indeed it seems to work with teensyduino :-( As you know I use Sloeber...
Root cause is that ...\arduino-PR-beta1.9-BUILD-31\hardware\teensy\avr\libraries\LiquidCrystal contains a LiquidCrystal.h and LiquidCrystal.cpp in 2 locations.
Arduino IDE seems to prefer the files in src and sloeber the...