Approach S20 Suddenly Not Detecting All Shots

I'm a right handed golfer. I bought my S20 about a year ago, and it worked flawlessly. Then earlier this year the auto shot detector started missing a tee shot here and there. Now it's happening more frequently. For a round of 18 it misses about six tee shots. Now, it's missing other shots. I have the current software installed. 

I realize there's a work around to this because I'm having to do it, but the watch is no longer performing as it should. Any advice would be greatly appreciated.