@SamStam - This is expected behavior.

Think of a Miro board as a document and then remembet that, as with most applications, there are no warning everytime you delete something from within a document, e.g., text or a shape from within Word, PowerPoint, a spreadsheet, a text file.

You should be able to recover deleted objects using the Board History: Activity feature.

Thanks so much!

Board History Activity solved my problem. I found the sticky note I accidentally deleted.