A sheet in my project stops working every now and then, and all the sheets and dashboards referencing this sheet stop showing data.
In this state, when the the sheet is opened, cells with formulas show "#INVALID VALUE". After one or two seconds, these errors disappear and correct values as per formulas are shown. Moreover, the save button gets enabled. If the sheet is saved, it starts working normally.
The problem occurs on irregular intervals which vary from few hours to a day or more.
A snapshot of the sheet is shown below:
All columns are of "Text/Number" type. The "Start Date" and "End Date" rows have dates in text format. The "Total Days" and "Net Workdays" rows calculate intervals by using NETDAYS and NETWORKDAYS formulas.
Example: =NETDAYS(DATE(VALUE(MID([1M1]2, 7, 2)), VALUE(MID([1M1]2, 4, 2)), VALUE(LEFT([1M1]2, 2))), DATE(VALUE(MID([1M1]3, 7, 2)), VALUE(MID([1M1]3, 4, 2)), VALUE(LEFT([1M1]3, 2))))