SpreadsheetView inside a expandable custom tableview cell

Expected Behavior

see all cell

Actual Behavior

sometime see all cell, sometime see one row less

Steps to Reproduce the Problem

1. programmatically create a cell in which there are a label and an icon. the cell is expandable at touch of cell. under the label and the icon put the spreadsheet view
2. populate the spreadsheet view with data stuff
3. build and run and touch on cell to expand the cell

Specifications

• Xcode version: 9.0
• iOS version: 11.0.2
• Dependency manager + version: Cocoapods last version

I'm trying to create a custom expandable cell in which there is the spreadsheet, because i want to show some information on demand by clicking on cell. the problem is that:

1. i've some problem with constraints
2. (the big problem) when click, alternatively you see all cells or one less.

how can I fix it?

That you very much