So this one may be a stretch, but I'm hoping it'll make sense to you and you'll have insight on how to resolve it. I have recently incorporated SumRndmDde's plugin to be able to retry a battle after defeat, with the Retry Upgrade plugin to provide an option of making adjustments to the party's equipment before doing so.
However, upon hitting the scene prompt for the equipment menu from this approach, I'm hitting a crash that seems to be citing an issue from DualWield. I've attached a screenshot of what I'm getting:
As far as I'm aware, the Retry Upgrade plugin is making a very basic call here--it's just hitting a SceneManager.push(Scene_Equip) when that option is being presented, and rolls back to a snapshot of the party prior to beginning the encounter.
The crash occurs when selecting a character whose equipment you'd like to change; in this particular screenshot I was selecting a character who doesn't dual wield and just has a main hand + shield equipped.