Bloxbucks not refunded after using undo on multiple waterfalls

Steps to Reproduce

1. I have no clue what this means but I would like to have my bloxbucks back
2. It is probably not possible to get my bloxbucks back
3. I want those things out of my inventory
4. I can't even use them for what I wanted originally

Explanation

Hi so I was building in bloxburg and was testing out ways to make a water fall and I was using the waterfall things i forgot the name of it but its the one that costs bloxbucks and typically everytime I went to use a bloxbucks item and click the undo button it puts the bloxbucks back in my balance and this time i clicked the undo after placing down mmultiple of the waterfalls and when i clicked undo it went into my inventory and I dont know if that is a apart of the update or if its a actual bug but now im down over 1k bloxbucks bc of it and I believe its a bug personally

Watchers

Watch