Items become invisible after a certain amount of time after they would have been destroyed

I'm trying to make it so items cannot be destroyed through commands and discovered that items turn invisible when they would normally be destroyed by something like a cactus, lava, or fire (I have not experienced this with explosions), the item's hitbox disappears but I can still pick it up.
The command I used was "/execute as @e[type=item] run data merge entity @s {Fire:-32767,Health:32767,Invulnerable:1b}" in a repeating command block.
I've attached a video of me showing this bug.