But Sefhi, I have a Rank 7 piece of gear I can upgrade, what’s the problem?
You might have some pieces but a lot of them are locked behind story progression, meaning you will be losing gear, becoming weaker and worse of all, not having replacement for those pieces of gear since they’re locked behind stages you can’t reach yet.
If you understand this system, feel free to level up your gear as you wish. For people who don’t want to lose resources or brick their characters, you can start leveling up gear starting at rank 6 and DON’T RANK UP until you have farmed a new set to level up.