The "add" button disappears if there are a small number of characters.

I'm having this problem as well. The only thing I've found that cures it is bringing up a preset. Even then it's touch and go. Sometimes I can change out characters, sometimes it's just... blank.

Easiest workaround I've found is to just add A LOT of characters like 10+
Then you should be able to set up your relationships. When you're done just delete the extra ones you added.

im having this issue as well

The workaround posted above will only allow me to use handmade characters. There's still no option to create unknown pawns like there normally is. Plus scrolling down all the way makes the buttons disappear.

My problem is slightly different, but it does concern relationships (Husband/Wife and Parent/Child). I get this error when clicking on the "Relationships" tab:

Exception filling window for EdB.PrepareCarefully.DialogSelectParentChildPawn: System.InvalidOperationException: Nullable object must have a value.
at System.Nullable`1[System.Int32].get_Value () [0x00000] in <filename unknown>:0
at EdB.PrepareCarefully.CustomPawn.get_FullName () [0x00000] in <filename unknown>:0
at EdB.PrepareCarefully.DialogSelectParentChildPawn+<>c__DisplayClass92_0.<Resize>b__2 (EdB.PrepareCarefully.CustomPawn pawn, Rect rect, Metadata metadata) [0x00000] in <filename unknown>:0
at EdB.PrepareCarefully.WidgetTable`1[EdB.PrepareCarefully.CustomPawn].DrawRow (Single cursor, EdB.PrepareCarefully.CustomPawn row, Int32 index) [0x00000] in <filename unknown>:0
at EdB.PrepareCarefully.WidgetTable`1[EdB.PrepareCarefully.CustomPawn].Draw (IEnumerable`1 rowGroups) [0x00000] in <filename unknown>:0
at EdB.PrepareCarefully.DialogSelectParentChildPawn.DoWindowContents (Rect inRect) [0x00000] in <filename unknown>:0
at Verse.Window+<WindowOnGUI>c__AnonStorey0.<>m__0 (Int32 x) [0x00000] in <filename unknown>:0
Verse.Log:Error(String, Boolean)
Verse.<WindowOnGUI>c__AnonStorey0:<>m__0(Int32)
UnityEngine.GUI:CallWindowDelegate(WindowFunction, Int32, Int32, GUISkin, Int32, Single, Single, GUIStyle)

I'm not sure if it has to do with other mods (I have a ton). I can however load a preset where two of my custom colonists have a Husband/Wife relationship.
If I try adding a new relationship (and ignore the message log) I can click on the "+" but clicking on a colonist does nothing except highlight the colonist. Even pressing Enter doesn't help.

Please let me know if you need any other information.

Getting the same issues. Hope edb is looking into it. Amazing mod still

Its missing for me too i hope it gets fixed

have the same error here is the log {LINK REMOVED}https://git.io/fhnG5

Issue is still present, any fixes coming?

I believe this is now fixed in the latest version, v1.0.11. Let me know if anyone is still seeing the issue.

Originally posted by edbmods:

I believe this is now fixed in the latest version, v1.0.11. Let me know if anyone is still seeing the issue.

Thank you very much, its fixed for me

Originally posted by edbmods:

I believe this is now fixed in the latest version, v1.0.11. Let me know if anyone is still seeing the issue.

Working as intended now, thank you very much for taking the time to look this over

Failed to patch the game code as needed for Prepare Carefully. There was an unexpected exception.
at (wrapper managed-to-native) System.Reflection.Assembly:GetTypes (bool)
at System.Reflection.Assembly.GetTypes () [0x00000] in <filename unknown>:0
at Harmony.AccessTools+<>c.<TypeByName>b__1_0 (System.Reflection.Assembly x) [0x00000] in <filename unknown>:0
at System.Linq.Enumerable+<CreateSelectManyIterator>c__Iterator12`2[System.Reflection.Assembly,System.Type].MoveNext () [0x00000] in <filename unknown>:0
at System.Linq.Enumerable.First[Type] (IEnumerable`1 source, System.Func`2 predicate, Fallback fallback) [0x00000] in <filename unknown>:0
at System.Linq.Enumerable.FirstOrDefault[Type] (IEnumerable`1 source, System.Func`2 predicate) [0x00000] in <filename unknown>:0
at Harmony.AccessTools.TypeByName (System.String name) [0x00000] in <filename unknown>:0
at EdB.PrepareCarefully.HarmonyPatches..cctor () [0x00000] in <filename unknown>:0