App Version:65.0.3292.0 Canary
iOS Version: 10.3.3, 11.2
Device: iPhone and iPad

Steps to reproduce:
1. Launch chrome
2. Long press on the most popular tiles
3. Tap on remove button in context menu
4. Immediately long press on another most popular tiles
5. As soon as context menu is displayed tap on undo button
6. Tap on any button of context menu

Observed results:
Nothing happens on tapping the button

Expected results:
Buttons should function

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): Yes on M63
Bug reproducible on the current beta channel build (App Version, iOS Version): Yes on M64 beta

Link to video/image:
https://drive.google.com/file/d/1ZdiXUh6hwMzCFB4uR1tJtyASn8v9h2vA/view?usp=sharing