Revision schedule with alphanumeric revisions does not show revisions above Z

[DirkOlbrich]

We have a problem showing revisions in a revision schedule which are above revision Z. The title block is set up with an integrated revision schedule, noting fancy here. It uses the fields Revision Number, Revision Date and Revision Description. The revisions are set to alphanumeric and are selected on a „per sheet“ basis.

Now we have a project with a lot of minor revisions and one of the current sheets is above revision Z. The current revision AA, BB, CC and so forth are not shown in the revision schedule, yet the title block index shows the correct revision (set to use Current Revision as the Label value).

What I have tried so far:

- extended the revision sequence default list of a,b,c...z under View->Sheet Composition->Revisions->Customize Numbering->select Alphanumeric -> select the edit pen

The default sequence goes from A to Z. Extending this sequence specifically with AA, AB, AC, AD and so forth does not have an effect on the revision schedule. The documentation says, that if the sequence only goes to Z, Revit will extend the sequence automatically with doubling the letters, which it does if I don't extend the sequence

- changed the with of the revision schedule column for Revision number so it can show more than one letter.  Still the schedule seems to break off after anything higher than Z.

I would guess that it's some visability bug within the schedule, as the internal numbering of high revision numbers works as intended. That is shown by the Current Revision label on the title block, which picks up higher revision numbers above Z, see attached image

Is this a bug or has anyone a solution to this problem?

Edit: using Revit LT 2023

[ToanDN · Accepted solution]

Sort the revision schedule by Sequence. 

[DirkOlbrich]

Thank you, that was it.

I had to add the Revision Sequence field to the schedule as a hidden field and switch sorting to Sort by Revision Sequence ascending.

Before that I had the sorting set to Revision Number ascending. Internal Revit sorted the revisions in the order A, AA, B, BB, C, CC, D, E ... Z. That way the revisions with X, Y, Z were always at the end of the list and thus shown in the schedule.