The `light_cache_info` string holds information about the outcome of Eevee light cache baking. It is currently 64 bits, which is enough to hold all possible messages in English. However, some messages need to be longer than this in other languages, so the holding string also needs to be longer. From what I can tell, 128 bytes is plenty enough. Pull Request: https://projects.blender.org/blender/blender/pulls/110028