One potential workaround is to render everything required on a single texture, and then adjust UVs to show specific areas of it as done in this PR

For context, we are aiming to use the UI to texture feature for the displays in the Apache mod, but this is causing issues with it due to it having 2 MPDs.

Further development. I tried changing out load orders, names, none of it worked.

I have this reproduced, on v2.06 (current stable) and with both the -debug & -filePatching set and not set, so it doesn't seem to be related to either of those.

AH-64D Apache mod dev here, agreed this would be great! I am currently in the process of moving our mod across to this, and the 50 values is definitely a tight squeeze for us too - we aren't able to move all of the parts of the pages across to the new method because of this and are working on a hybrid approach, and multiplexing the different MPD pages so we can reuse values.