After applying the Powerful Shot Evolution to Xavi Simons, the player correctly received the Power Shot+ PlayStyle and worked normally for several matches.
However, after logging into Ultimate Team today, I noticed that the Power Shot+ PlayStyle was automatically removed and replaced with Technical+, without applying any new evolution or making any changes to the player.
The player item is still in my club and was not quick sold, not submitted into an SBC, and no additional evolution was applied.
This affects the performance and value of the evolution, as it was purchased specifically to obtain Power Shot+.
This appears to be a bug and should be investigated, as the PlayStyle+ changed without player action or notification.