StarDragon77

1. Using attached world files named "My Building World"

2. . Added corner block at -1 -19 -9 and named it "OakwoodManorV4"

3. Added corner block at -1 -19 77 and named it "OakwoodManorV4"

4. Added corner block at -1 -62 77 and named it "OakwoodManorV4"

5. Added corner block at 67 -19 77 and named it "OakwoodManorV4"

6. Added corner block at 67 -62 77 and named it "OakwoodManorV4"

7. Added corner block at 67 -19 -9 and named it "OakwoodManorV4"

8. Added corner block at 67 -62 -9 and named it "OakwoodManorV4"

9. Added structure block at -1 -62 -9 and named it "OakwoodManorV4"

10. Turned off "Include Entities" on structure block

11. Selected "Detect" on structure block

12. Structure block will not detect corner blocks

Well, I tried it again with my daughter today as she was the first to notice it. It happened when I tried to replicate it that day, but now it isn't doing it anymore.

Working on aquiring a video of said issue.

I'm sure, I tested twice and it did it both times.