I recently upgraded from Nexus 5 to Nexus 5x. I used the automatic process to move my data from the old device to the new, and everything went smoothly, except for the dictionary.
I type in Hebrew (I'm Israeli) and I have a custom dictionary of hundreds of Hebrew words that aren't in the built-in dictionary. (That's because Hebrew has a lot of different declensions and connected propositions, so built-in dictionaries never have all the words you might want to type.)
It took me years to amass hundreds of words that I use every day. I noticed that my new Nexus 5x doesn't recognize these words; when I type them, it red-lines them, and when I try to swipe them, it doesn't guess these words.
I figured that the upgrade process didn't really transfer my dictionary, but then I went into Settings -> Language & Input -> Personal dictionary in my new phone, and saw that all my old words were there! But yet, the phone doesn't recognize them when I'm actually typing.
How can I solve this problem?