I did a report on a bug with the banner shield upsidedown and they suggested that I should disable a recorce pack and it worked, so I am doing a bug report on this.
MCPE-171469
Banner shields upside down when a recorce pack is applied.
Resolved
Invalid
0
Sorry, but we can only track bugs in vanilla Minecraft. You should ask the resource pack creator to update the pack for this version.