[MC-93561] OnGround & InGround dataTags not working

When you use this command:

Input Command

scoreboard players set @e[tag=Id10] SPVar 1 {InGround:1b}

Input Command

scoreboard players set @e[tag=Id10] SPVar 1 {OnGround:1b}

the command block (or chat) return:

Error

An unknown error occurred while attempting to perform this command

Linked issues

Hey ! I've tested with:

Command

scoreboard players set @e[type=Pig] SPVar 1 {OnGround:1b}

And that work. I think tags have some problems.

Duplicate of MC-93074, unless you can find a case where Arrow are not involved.