How did the Gupta Empire become decentralized?

Decentralisation is the inevitable end of late Spenglerian societies. Once the bureacratic apparatus & societal organization become too cumbersome & resource-intensive to be maintained by the presently available resources, complex systems - like the Continent-spanning Gupta Empire- undergo a process of Catabolic collapse wherein their ability to successfully project power & communications over significant spans of time, distance, and societal cruft reduces significantly. A similar process will inevitably happen to the modern world soon, likely within the timeframe of 2025 CE to 2033 CE, according to certain individuals. Accordingly, we observe significant levels of decentralisation within the Gupta Empire in the years leading upto 525 CE- where the Empire was weakened considerably enough to lose control of the Continent at multiple points- and beyond, as well in the late 8th Century CE when it finally collapsed. The legacy of the Empire was carried forward by its constituent vassals- some of them even claiming Imperial status for themselves, however the line itself appears to vanish from history itself