A multilingual digital archive contains a substantial collection of historical documents digitized from various sources. These documents include texts in languages that predominantly use the Latin script, but also feature numerous localized variations with distinct diacritic marks, ligatures, and orthographic conventions not universally supported by standard Latin fonts. During the initial digitization process, a decision was made to use the generic ISO 15924 code \"Latn\" for all documents employing a Latin-based script, aiming for simplicity and broad compatibility. Years later, a team of researchers attempts to analyze the corpus using modern text processing tools and Unicode-aware applications. However, they encounter significant challenges in accurately rendering and processing the text, particularly those containing the localized script variations. Considering the inherent limitations of using a single, broad ISO 15924 code for diverse script variants, what is the most likely primary consequence of this decision on the long-term preservation and accessibility of the digital archive\'s content?