I also have a Samsung GS4 (ATT) with the above issue. I changed the keyboard a while back only because of Fuelly. Unfortunately ATT pushed the 4.42 update on me and I was back to the default settings. I finally saw the work around above to disable the Fuelly keyboard and it does work.
I understand the issues with Android, Samsung, ATT, etc. having moved from an iPhone a year ago. My podcast reader and audiobook reader all had similar excuses when addressing quirks from the different vendors and Android. It is like the early days of the PC.
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