using [ /data ] to change:
- a banner's pattern and/or pattern color
- a sign's text
- structure block bounding box and gui (unlike the others, this change is not corrected on reload)
using [ /data get ], the returned nbt shows the correct (updated) nbt.
Middle-clicking the banner gets the wrong (old) item in inventory.
The visuals update according to the nbt instantaneously without the need of re-logging.
- Place any banner.
- use a command to change the patterns:
- The texture doesn't update.
- Relog. It is magically fixed!
End Crystal and area effect cloud:
- Place an entity.
- change the pos using [/data].
- Position only changes after relog.