Had the same issue, bluestacks running bedrock 1.19.73, three out of the four texture packs prevented the mouse from locking on the center
With Issue: (High) - https://resourcepack.net/dokucraft-the-saga-continues-resource-pack/-https://resourcepack.net/pixel-perfection-resource-pack/
-https://resourcepack.net/overgrown-flowery-gui-resource-pack/No Issue:https://resourcepack.net/madoku-craft-resource-pack/
NeverEverTM
Had the same issue, bluestacks running bedrock 1.19.73, three out of the four texture packs prevented the mouse from locking on the center
With Issue:
(High) - https://resourcepack.net/dokucraft-the-saga-continues-resource-pack/
-https://resourcepack.net/pixel-perfection-resource-pack/
-https://resourcepack.net/overgrown-flowery-gui-resource-pack/
No Issue:
https://resourcepack.net/madoku-craft-resource-pack/