Hi hopefully someone can help. I've had my s10+ since launch and everything has been perfect but all of a sudden over the last few days whenever I start writing a text the cursor keeps jumping to the beginning. I've tried clearing data and cache, even installed gboard but didn't help and it's so frustrating. Only seems to happen while in messages, tried in browser, Samsung note, WhatsApp and all is fine.
My mrs had this issue using gboard. I dont exactly remember what I did, but there was a setting within the keyboard setting that mentioned something about swiping the spacebar to move the cursor. I disabled the slider for this and it fixed it for her.
Pay over a grand for a Samsung S10+ and they'll give you a text messaging app that doesn't work and then they'll never bother releasing a patch or an update to fix the problem.
Just download the Google messaging app and make that your primary messaging app. That pretty much solves the problem instantaneously.