When using WAB for Developers edition 2.10 and 2.11, the builder sometimes scrambles the attribute table config. The post below discusses the issue.
https://community.esri.com/message/833240-wab-21011-attribute-table-config-keys-are-scrambled
I have now tested this in 2.12 too and am still regularly experiencing scrambled references in the attribute table configs. I have noted that in particular, tables and portal items created for an outside services that requires credits, tend to confuse the attribute table config.
