The mod Personal Transformer2 (1.0.4) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event PersonalTransformer2::on_player_armor_inventory_changed (ID 38)
Unknown quality name: legendary
stack traceback:
[C]: in function 'create_entity'
PersonalTransformer2/control.lua:566: in function 'insert_entity'
PersonalTransformer2/control.lua:781: in function 'equipmentInserted'
PersonalTransformer2/control.lua:885: in function 'playerOrArmorChanged'
PersonalTransformer2/control.lua:174: in function <PersonalTransformer2/control.lua:172>

^^^^
Error I get when I fire up jetpacks. I am also reporting this on their discord.

What was the exact steps to lead up to this? Were you inserting a jetpack into armor after a jetpack, or vice versa?

Both Equipments were in the armor, The transformers wre on and working fine, It only crashed when I tried to use the jetpack.

Latest version should be working now.

Fixed, Thanks!