You guessed it, it's another Rules update. Check here for more info

Tag changes for image #30828

Display only:RemovedAddedAll
ImageTagActionTimestampUserRetained?
30828
Size: 4864x3328 | Tagged: safe, ai content, ai generated, automatically imported, derpibooru import, generator:autismmix_pony, prompter:frzwt, oc, oc only, pony, building, city, female, not sunny starscout, outdoors, river, sitting, solo, water
+ solo26212Added LightningBolt
Stop! This user is a staff member.
Ask them before reverting their changes.
Yes