UserAgent: Mozilla/5.0 (X11; CrOS armv7l 11021.34.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.41 Safari/537.36
Platform: veyron_mickey

Steps to reproduce the problem:
1. press mod3 + tab (compose)
2. press ae
3. press mod3 + mod4 + g

What is the expected behavior?
step 1 (no output)
step 2 æ(aesc)
step 3 Γ(Gamma)

What went wrong?
in browser text fields such as this one:
step 2 ae
step 3 >

in chromeos search bar a tab event also occurs at step 1.

Did this work before? N/A 

Chrome version: 70.0.3538.41  Channel: beta
OS Version: 11021.34.0
Flash Version: 31.0.0.122 

mod3 no longer triggers caps lock, but in combinations of meta keys involving mod3, the other state modifiers seems to be lost and ignored.