Welcome to ZDF!

They lack the newline. PR [url=https://github.com/rheit/zdoom/pull/913]here[/url].

I clarified the error message, but obviously can't do much about the fact that the maps indeed contain garbage data that should be warned about.

The message is from a time when these lumps were only named SCRIPTxx.

Uh okay...

still, the message could be improved, like mentioning it's a conversation lump problem (just saying 'Incorrect format data' is misleading)...

Doom Builder tends to add garbage DIALOGUE lumps in UDMF.

Do these maps contain conversation scripts? And if so, are they there by intent or just some garbage?

// Strife scripts are always a multiple of 1516 bytes because each entry
// is exactly 1516 bytes long.
if (numnodes % 1516 != 0)

All the errors I see come from the failed condition:

[code]
// Strife scripts are always a multiple of 1516 bytes because each entry
// is exactly 1516 bytes long.
if (numnodes % 1516 != 0)
[/code]

And as I said, it happens with most of the maps:

maps/titlemap.wad , maps/e1a3.wad, maps/e1a4.wad, maps/e1a5.wad, maps/e1a7.wad, maps/e1a9.wad, maps/e1a10.wad, maps/training.wad, maps/dm01.wad, maps/dm02.wad, maps/dm03.wad, maps/dm04.wad

That message means that the conversation script loader failed to detect the format for a lump. No idea what's wrong since you left out the most important part for analyzing the problem, i.e. the actual lump name. I can't test right now so I at least need to know what to look at.

Incorrect data format for maps/%name of the map.wad%.

If you load square1.pk3 (be sure to use at least version 1.3.2 (2016-10-06) from the website), some maps exhibit this warning:

[code]
Incorrect data format for maps/%name of the map.wad%.
[/code]

I can say that, to be pedantic, the DPrintf calls in p_conversation.cpp lack the newline. And also a clearer description of the problem.

Anyways, is it a problem with the iwad or with zdoom?