When selecting alternate units to display in the Qt app instead of the natural LTC -- such as lites, photons, & litoshi -- there are several places that do not update properly for the latter 2 small units.

Multiple locations continue to show references to "bits" & "sat" from the Bitcoin codebase, instead of the selected smaller unit of a Litecoin. This occurs whenever selecting "photons" & "litoshi" (presumably meant to display abbreviated as "lit" or "lits"). -- The display does appear to update properly for both the native "LTC" unit and the larger subdivision of "lites" however.

The specific locations which use the wrong text labels for their units are: The main Overview panel, the bottom half of the Send panel, as well as the Requested column of the Receive panel, and the Amount column in the Transactions panel.

Always reproducible. -- Simply select the unit to use when displaying amounts, from the menu at the bottom of the main window, and the updated view will always consistently use the 2 smallest Bitcoin unit names instead of the 2 smallest Litecoin units in all of the places described. -- A few other places, such as drop-down menus on Send & Receive panels, actually display the correct label text. But as described above, most places do not use the correct text.

Running v0.18.1 from the Litecoin.org site's download links.

Observed in macOS Big Sur on Intel (64bit) iMac, with 1TB Fusion drive & 16 GB of RAM.