What was the primary surprising result from the Hubble observations targeting the cluster 47 Tucanae?

Answer

The number of detected transiting planets was significantly lower than expected.

Based on extrapolations from the Milky Way disk, scientists expected to find a certain number of transiting planets in 47 Tucanae, but the actual detection count was much lower.

What was the primary surprising result from the Hubble observations targeting the cluster 47 Tucanae?
astronomyplanetsstarsexoplanetsstar formationastrophysicsstellar dynamicsglobular clustersGlobular cluster