After start karabiner-elements , the titled function will not work and quit it the function will work again.
+1 - happens for me as well. All modifier keys affected.
This repeats for me on version 0.90.64.
I enabled control-scroll zoom in the System Preferences Accessibility panel. Zoom works when Karabiner-Elements is not running, but does not work when it is running.
My config file is attached.
karabiner.json.txt
+1 this is a big issue for me because I use screen zoom all the time
+1
Yes very annoying! This keeps me from using Karabiner-Elements!
This is still an issue with version 0.90.48. I love to Command + scroll to zoom, it would be great if this got fixed 馃槃 Thanks!

Same for me. I can't work without forward delete on my right option command (so I love karabiner)... and neither without the scroll zoom (so I can't use karabiner...)..... Thanks for your support!
Confirm this, waiting patiently for fix
+1
still waiting for this... it's been almost three months after the first issue about this
Now it works: both forward_delete and zoom are possible!!! That's great! So happy! many thanks!
Indeed, 0.90.67 seems to fix the issue!
Confirmed fixed in 0.90.67. Great work guys!
Thank you, @tekezo.
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Most helpful comment
Now it works: both forward_delete and zoom are possible!!! That's great! So happy! many thanks!