MMH5.5 - Heroes of Might and Magic 5.5

Thank you Tantalass. What do you get in the console when this happens?

This map, where the rebuilding error occurred, was generated with the 8p-belt-I/Xlu options.
On other playable maps with Ultima and Epic settings on the latest patch, rebuilding works normally.
I haven't rechecked the belt option on another map.
Here is what it displays in the console after attempting to rebuild the city: Attachment 67139
Maps are generated according to ARMG Manual V2.3, followed by using MMH55_Mapmixer