App Version: 59.0.3071.82 beta
iOS Version: 10.2.1
Device: iPhone 6
URL: 
 
Steps to reproduce:
  1. Launch Google Chrome
  2. Go to Menu -> Help
 
Observed results: 
Google Chrome Help toolbar is hidden
Note: This happens for every new tab only once.
 
Expected results: 
Google Chrome Help toolbar should be shown
 
Number of times you were able to reproduce: 5/5
Bug reproducible after clean install: Yes
Bug reproducible after clearing cache and cookies: Yes
Bug reproducible on Chrome Mobile on Android: Not tested
Bug reproducible on Safari/Firefox: Firefox: NA, Safari: NA
Bug reproducible on current stable build (App Version, iOS Version): M58  Yes
Bug reproducible on the current beta channel build (App Version, iOS Version): M59 Yes
 
Link to video/image: 
https://drive.google.com/a/google.com/file/d/0B3EcbqLuR5TLeEdONWJGNnp6dWs/view