What are some of your photo filenames?
Are there any strings of text that match any names listed on the taxonomy tab of the pages for orange or wall brown? Some people name their photos with the species in the filename, so iNat tries to match the taxon in the web uploader automatically.
https://www.inaturalist.org/taxa/331122-Citrus---aurantium
https://www.inaturalist.org/taxa/147298-Lasiommata-megera
See feature request: https://forum.inaturalist.org/t/extract-species-name-from-photo-filename-upon-upload/6510
And some issues: https://forum.inaturalist.org/t/add-observation-automatically-tagged-my-observations-with-incorrect-names-based-on-photo-filenames/8203/2