all of a sudden, jjui 0.8.8 seemed to ignore my config (easily noticeable since Ihave preview.show_at_start = true and the preview disappeared).
Which was weird since jjui --config would display my config.

Turned out I had added a faulty custom command

[custom_commands]
"duplicate" = { key = ["m"], args = ["duplicate", "-d", "@" }

Commenting it fixed the issue. But jjui did not warn me of the error.