Under the common method that locates the annual Life Palace from the year's earthly branch, the position returns after twelve years. That is a property of the calculation, not a promise that an old event will happen again.
The branch repeats before the full year combination
2014 was Jia-Wu and 2026 is Bing-Wu. Both use the Wu position, but their heavenly stems differ. Their stem-based annual transformations therefore differ as well. Repeating the branch is not the same as repeating the complete stem-branch combination.
After twelve years, you are also in a different ten-year cycle. The natal position may be the same while the timing context is different.
Similar themes can hide very different events
Leaving home for university at twenty and relocating with a family at thirty-two both involve movement. That broad resemblance does not establish a precise prediction of repetition.
Record each year's actual events before comparing the charts. Keep different outcomes and quiet periods in the record rather than selecting only similarities. A painful event twelve years ago is not scheduled to return because a palace label does.
When comparing years in YuetianAI, note the annual Life Palace, year stem, and ten-year cycle together. The repeated position starts a comparison; it does not answer it.