It should select the rewards you select on GUI; if no rewards are selected, it will select some default ones
I haven't extended the ironman support in a very long time, but I have a few ones on my to-do list; it may also be easier to run in debug mode after I add custom bank teleports and spell teleport support
That's usually caused by wrong item definitions provided by the mirror client when switching from a F2P world to a P2P world that were saved in a gear/quest preset. It's best to load a new client whenever you switch from F2P to P2P on mirror mode to avoid this problem (until we have a new mirror client version to fix this automatically). That gear preset now contains "Members object" because that's what the client detected as item name when saving the worn equipment. You can either overwrite the presets by saving another preset with the same name or delete them. To get rid of that gear preset:
Close the mirror client
Go to C:\Users\<USER>\OSBot\Data\StealthQuester\GearPresets\ and delete the gear preset that you used when running it above; also delete the quest preset if it was saved from C:\Users\<USER>\OSBot\Data\StealthQuester\QuestPresets\
Start the mirror client
Select a P2P world and log directly into it
Create a new gear/quest preset
Do not log into a F2P world while that client is open; if you end up in a F2P world and have to switch back to P2P, make sure you restart the mirror client and log directly into the P2P world to avoid loading corrupted item definitions