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When a modifier is made at a node with a local successfull run then the icon will change to a yellow icon 
icon with a blue check (local run) or yellow icon with a green check (server run)
to indicate that the workflow of that node needs to rerun.
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If the user changes the state selection in the IFD so that the state selection used in the run doesn't match the state selection in the IFD anymore then the icon will turn yellow 
to a yellow icon with a blue check (local run) or yellow icon with a green check (server run)to indicate that the node needs to be rerun.
An example is shown below
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If a user increases the forecast length the status will also be set to invalid and change to the icon to a yellow icon with a blue check (local run) or yellow icon with a green check (server run)to indicate that the node needs to be rerun.
Previous node has an invalid status
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In the example below node TUNA2 has a successfull status. When the user reruns the previous node NEBA2 then node TUNA2 also needs to rerun to make sure that its results are up-to-date.
To indicate this the icon of node TUNA2 is is marked as yellowchanged to a yellow icon with a blue check (local run) .
Time zero different and another item is invalid
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then the icon will change into a grey icon with a yellow checkmarkcheckmark (server runs and local runs)
. Below a few examples.
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