Items held by armorstands are only visible in spectator mode

Can you provide the exact commands you used to get those armor stands? I tried with a normal armor stand holding a block, and made it invisible, but the item did still show up in Creative.

The arrows:

summon armor_stand ~.7 ~-1.92 ~-.55 {Tags:["arrow"],HandItems:[{id:"minecraft:arrow",Count:1b,tag:{Unbreakable:1b}},{}],Invisible:1b,Invulnerable:1b,NoBasePlate:1b,NoGravity:1b,ShowArms:1b,Rotation:[270f],Pose:{RightArm:[180f,0f,0f]},DisabledSlots:4144959}

The bow:

summon armor_stand ~.3 ~-1.35 ~.4 {Tags:["bow"],HandItems:[{id:"minecraft:bow",Count:1b,tag:{Unbreakable:1b}},{}],Invisible:1b,Invulnerable:1b,NoBasePlate:1b,NoGravity:1b,ShowArms:1b,Rotation:[270f],Pose:{RightArm:[180f,-10f,90f]},DisabledSlots:4144959}

I had some more wierd things happen, for example that these items got visible after switching to spectator mode and back, but right after summoning these they weren't visible

Thanks, can confirm. Probably has something to do with some tags that these armor stands have.

When switching back into Creative, the armor stand remains, but it disappears again as soon as you look away.