This radiant quest that can be obtained e.g. from the mission terminal at The Lodge tasks the player with finding a specific feature on a planet in a randomly chosen system. The feature is randomly chosen too, but problems only arise if it is the "Primordial Network". In that case, the quest will never complete, irrespective of how many "Primordial Networks" are discovered in the system the quest sends you to.
This appears to be related to a missing category on that specific feature. This "category" (likely a keyword) puts the individual features one can search for in groups, and is presumably used for event filtering when the radiant quests evaluate their stop conditions. This category I'm talking about is usually displayed in the quest log, where it appears in parentheses after the name of the feature one has to look for, e.g. "geological", "geophysical", "ecological", etc. If you have to search for "Primordial Network" however, there are only three dots displayed in parentheses after the feature's name.
Actually not a big issue (it's just some radiant quest after all), but since the bug makes the quests uncompletable, I'll mark it as "medium".
Issue Data
Issue #33686: Problems with finding "Primordial Network" in system XYZ