Elytra glitched movement

i was just wandering around my creative word and was just about to get elytra to find a village the then i wore my elytra and pressed jump twice to activate the elytra but then as soon i touched the ground i was still gliding and over the ground i could even jump to increase my y-  -axis to get some height for more gliding. It was like the mix of elytra and normal walking sprinting the Minecraft environment was behaving like absurd. My flight also cancelled automatically in between after i gain altitude after jumping. here is the whole clip of my whole experience: https://drive.google.com/file/d/1lw7J3yT9ZdDSKj56IiQk1pjC-LIv8xwU/view?usp=sharing