Steps to reproduce the problem:
Precondition:
1. Login a Google account. 
2. Set Display size as large and Font as Largest.

Procedure:
1. Launch Settings.
2. Tap Google.
3. Tap "Personal info & privacy"
4. Log in and Tap Name.
5. Tap Edit icon.
6. Remove name by pressing back button in Keyboard.
7. Input one character and check.
or
8. Input 2 characters and check.

What is the expected behavior?
After 7: Should display correctly according to inputted characters.
After 8 Should display correctly according to inputted characters.

What went wrong?
After 7: The character is not displayed.
After 8: Displaying three characters even though inputted characters are only two

WebStore page: 

Did this work before? Yes 49.0.2623.91

Chrome version: 56.0.2924.87  Channel: n/a
OS Version: 7.0
Flash Version: NBD91Y

Issue reproducing with Nexus 6x also.