sheet index (list) not organizing properly 2017

[jledgewood409]

I am having some issues with my sheet index not organizing the sheets properly. I have parameters set up to do so and these same parameters are being used in other projects and working properly. for some reason there are two sheet that are not following in order and when I add a new sheet and apply those parameters to it they do not follow in order.I am attaching a screen shot of the schedule so you can see what I am talking about

[L.Maas]

Can not see what is the reason. But you are grouping your sheets by one of your parameters which causes them (A0.2, A0.3) to be in a different group from the others.

[jledgewood409]

I am attaching a test project that has the same issue for your review.

[ToanDN]

Can't see any file. Can you post a screenshot of the schedule's group/sort settings?

[jledgewood409]

attached should be a screen shot of the schedule with all four parameters that govern the sheets

[ToanDN]

I have already seen this. I am asking the group/sort windows as you editing the schedule.

[jledgewood409]

sorry about that. attached should be a screen shot of the sorting & grouping window

[ToanDN]

Get rid of the Sort by Discipline and see what it does.

[jledgewood409 · Accepted solution]

I figured it out per someone else's suggest on a different Revit forum. see below

It appears as though someone at one point filled in the "Discipline" parameter for sheet A0.1, then deleted the parameter value. I did this by testing that theory on sheet A0.2. So in Revit's mind, the parameter is no longer a null value for A0.1, but rather it's just blank. If you fill in the "Discipline" parameter for the 3 sheets in question, they will organize properly.

[L.Maas]

Basically what ToanDN and me mentioned.