If your query refers to the "long piece" of content added by the expansion, Iceborne is a massive addition that nearly doubles the size of the base game.
The loading process can get stuck at various percentages (start, middle, or end) with the loading animation itself often freezing. mh-world-iceborne-paradox
Users frequently report extremely long loading screens that can take 5–10 minutes or even appear to be stuck indefinitely. If your query refers to the "long piece"
Some players find the crack simply won't launch on certain system configurations, a problem that is often reported as being "random". Content Length and Gameplay Some players find the crack simply won't launch
The expansion adds 28 new monsters and two major new locales, effectively mirroring the amount of content found in the original base game.
It takes approximately 38 hours to beat just the main objectives.
The most common "long" issues associated with the release involve the game's startup and loading stability: