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UV Channel not Importing

I am having an issue with random objects not importing their UV channels I have created in 3ds. I do the same process for many different objects and import the object into UE4 and the second UV channel comes in fine. But seemingly randomly, like the model I am currently working on, no matter what I do, I cannot get a second UV channel to import. I am doing nothing different, so I can't seem to figure out what is going on. Has anyone ever had this problem?

Here is a link to the FBX file I can't get to work: https://app.box.com/s/purunwctlppqwx7xknnhavtbb69vnx9s

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Product Version: UE 4.16
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asked Jul 14 '17 at 12:12 PM in Using UE4

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avatar image michael93 Jul 14 '17 at 04:47 PM

Are you importing it or re-importing it? I've had trouble getting my second UV channel to come in before, when reimporting. I just deleted the mesh from UE4 and imported again as a new mesh, that's helped before for me

avatar image michael93 Jul 14 '17 at 04:53 PM

Update: Okay that's interesting, I've brought the model in to the engine myself. I got both UV channels show up. However, nothing was in those channels for me. I might try tomorrow when I have access my PC which has a newer version of the engine. I'll let you know what happens then

avatar image DMHokie Jul 14 '17 at 05:04 PM

I have had trouble getting the second channel when reimporting as well. This one doesn't seem to want to work no matter what. I tried reimporting and deleting the mesh and importing it. I even tried starting a new project all together and importing it. Nothing seems to want to bring in the second channel.

avatar image michael93 Jul 14 '17 at 05:17 PM

I imported it into blender just before and the UV maps didn't show there either. I think this might be an issue at the modeller end

avatar image ACLUND3 Nov 09 '18 at 02:26 AM

Sorry for the year later bump, but I had trouble when reimporting after adding a 2nd UV channel too. While experimenting I unchecked 'Generate Lightmap UVs' in the LOD0 and Import Settings dropdowns, saved the asset, and then reimported. Then I rechecked generate lightmaps and now I have both of my channels, plus the 3rd generated by UE4 for the lightmaps. Hope that helps someone.

avatar image Lancev Jan 04 '19 at 12:29 AM

One Extra bump for anyone else viewing this today, make sure that when exporting your UVs (in my case from Maya), that you have the UV Set 1 as your main set, or the current one when exporting. For some reason having it set to anything besides 1 means UE4 won't load the the rest of the sets.

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