HD44780 LCD Display Timeout Error

Just tried this:

Serial1.setup(9600,{tx:A9,rx:A10});
I2C1.setup({scl:B6, sda:B7});
var lcd = require("HD44780").connectI2C(I2C1);
lcd.print("Hello World!");

And it's still the timeout error

>
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|  __|___ ___ ___ _ _|_|___ ___
|  __|_ -| . |  _| | | |   | . |
|____|___|  _|_| |___|_|_|_|___|
         |_| espruino.com
 2v07 (c) 2019 G.Williams
>Uncaught InternalError: Timeout on I2C Write BUSY
 at line 1 col 111
...|4,a|4,a,a,d,d,d|4,d|4,d,d])
                              ^
in function "a" called from line 1 col 7
a(51,1),a(50,1),a(40,1),a(12,1),a(6,1),a(1,1),{write:a,clear...
      ^
in function "a" called from line 1 col 133
...,a|4,a,a,d,d,d|4,d|4,d,d])})
                              ^
in function "connectI2C" called from line 1 col 842
...('HD44780').connectI2C(I2C1);lcd.print('Hello World!')
                              ^

Also, just a small observation: I feel I've been spoiled by the nRF52 chips because I keep expecting I can just assign any peripheral to any pin, whereas with STM32 there are only specific pins you can use for certain peripherals :P