Hi Guys,

I was asked to look at a tool develeped long time ago by someone other than me, but I am having trouble identifying the root cause and it's kind of urgent, hense I ask for help here.
The tool works fine in excel versions <= 10.
It containts macro's en formula's. the macro's are not an issue in this case.
The problem manifests in just one sheet - when you type in a value in a cell and press enter it takes forever to calculate, but if you simple copy and paste the values in the exact same cell everything works just fine.

Excel version 2016 is what we are using now, but 2013 has the same issue.

Any help will be appreciated.