I confirm that using SwiftKey keyboard solves the issue: I was always annoyed with the dead keys not working on Swiss French stock Gboard keyboard (android tablet): in the title, I got the accent until I typed a letter, which replaced the accent, in the note body, the accent remained before the new typed letter. After I read this post, I tried with TouchPal, which I use on my Fairphone. With this keybooard, I got the right behavior on the title line, but in the note body the problem remained the same. After I installed SwiftKey and switched to it, all was working perfectly. Thanks a lot! Btw, in other apps, like Word, for instance, all was OK with the Gboard.