iPad Pro 12.9” Gen 1 on iPadOS 13.5.1 with Minecraft 1.16.0.
I did /locate temple in an attempt to find a desert temple and when going to the co-ords it had no temple, wasn’t even the correct biome. I dug straight down and there was no structure below either. I tested this on multiple seeds and got similar results.
Note: Sort images by date and use the oldest first for the correct order.
World Seed for image 1/2 is 509778239
World Seed for image 3/4 is 1204804229
World Seed for image 5/6 is -880999259 (This one is immediately at spawn so easiest to see.)