Created (and subsequently used) a "Custom value" tag (with numerical value).
Later, looking at the tag data again, by selecting the respective tag in the "Tags" list, the tag incorrectly says it is a "Stundensatzanpassung" or "Hourly rate adjustment" tag. Instead, in the SQLite database, the type code of the respective tag correctly is 1280.
WorkingHours version: 2.11.29 (latest on iOS)
OS + version: iOS 18.3.1 (latest as of 19 Feb 2025)
Device model: 15 pro