Minecraft selected resource pack is not displayed?

I have installed a resource package and if I select it, it will not be displayed.

That means there's a right and a left side in the resource package select.

If I take my package from the left and paste it, then on the right side is not displayed. So if I want to remove it, then it does not work.

I'm looking forward to tips and answers.

May there be any missing information in the resource pack? Maybe download another version or is this with all resource packs?

Fits already. It's been dealt with.

No problem. Have fun