Ctrl + Z Not Working as Expected in Message Fields

First, I want to say that I love Roll20. I move around a lot and it helps to be able to stick with long-term games via the Internet. The bug I am reporting is minor, but nonetheless annoying.

When typing into a message field (such as the one I'm typing in now), I've noticed that Ctrl + Z doesn't work as expected. I try not to use it at all, but I inevitably forget and end up deleting minutes worth of writing with no way to recover it (Ctrl + Y doesn't seem to work).

Detailed Description of the Problem

After typing a few paragraphs in a message field, then going back through what you've written to make some changes, if you use the Undo shortcut Ctrl + Z, it will delete the last few things you typed, regardless of where they were. I'm not sure exactly how much text it deletes or whether it deletes a certain time frame back, but it ends up destroying any piece of writing longer than a couple paragraphs (which is pretty common for messages about RPGs).

Steps to Reproduce the Problem
Open a message field like the one I'm typing into now. Type a few sentences. Enter a couple returns. Do this a few times, then go back through the text and make a few additions, changes, and deletions. Then hit Ctrl + Z. Text from all over the message field is removed, taking away much more than the last thing you typed or even the last few things. Ctrl + Y does not work to restore the text.

Description of Your Setup (Browser + Version, Operating System, etc.)
Chrome 42
Windows 8.1
Pretty sure neither of those matters. Browser might.

Thanks!

Michael, I wasn't able to replicate the issue. When I use the ctrl+z it reverts my actions in order.

Also in many programs, including ours. ctrl+shift+z redoes the action.

Ctrl + Shift + Z works. Thank you for pointing that out. That kinda makes it a non-issue, so feel free to disregard this post for that reason. However, if you're interested in recreating still, it does works strangely for me. I took a couple screenshots to demonstrate.

Text before hitting ctrl + z:


Text after hitting ctrl + z:

I didn't know about Control-Shift-Z, so thanks for that tip Steve. Will try it.

Control-Y is what I'm used to for "Re-do" and I've experienced the same issue as Michael H, where Control-Y did not work to redo an undo. I also tried the Chrome menu EDIT>REDO and that also did not restore text that was disappeared from hitting Control-Z (Undo).

And I have also experienced the same issue Michael reported with unexpected amounts of text disappearing when pressing Control-Z. This happens to me fairly regularly on my campaign-forum posts, so much that I have learned to highlight the entire message and hit "COPY" (Control-C) before hitting Undo, just in case it erases several paragraphs instead of just the last thing I typed.

I also have the latest & unmodified Chrome, but I'm on Mac.