Cant do a Starter kit

The bug is that when i try do to a kit that regenerates so you can take things out with the clone command block everytime the shulker/chest regenerates it closes

What I expected to happen was...:
I expected the kit being able to regenerates without closing the shulker box/chest ui

What actually happened was...:
When i open the shulker box/chest everytime it regenerates it closes

Steps to Reproduce:
1. Take a shulker box/chest and put whatever you want in it
2. Then take that shulker with the things in it and put it whereever you want (possibly over a command block)
3. Then write in the command block (thats gotta be on repeat, always active and on for example 50 ticks) a clone command that clones the shulker above the command block  to another place
4.When you try to open the shulker evry 50 ticks thet you put in the command block it will close

Here's the video link (it lasts only 7 days):https://we.tl/t-SsjoWXOfUW