I suppose creator is... abandoned this mod? Last update was 19th Aug and sky island just don't generate at current mod version + current rimworld version (maybe this caused after recent rimworld 1.6 update)

They do generate, just not in the gravship scenario for me.

they dont generate for me either

Also having this issue :/

They are not generating at all for me

this is the arror im geting when starting

Planet Layer Avatar_SkyIslandsLayer missing proper LayeredAtmosphereOrbitDefModExtension. Can continue playing without issues, but ask developer to add it with patch. Layer is from mod Sky Islands [metalocif.skyislands].
UnityEngine.StackTraceUtility:ExtractStackTrace ()
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.Log.Error_Patch1 (string)
LayeredAtmosphereOrbit.LayeredAtmosphereOrbitUtility:TryAddPlanetLayerts (RimWorld.Scenario)
LayeredAtmosphereOrbit.HarmonyPatches:InjectScenarios ()
LayeredAtmosphereOrbit.HarmonyPatches:.cctor ()
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:System.Runtime.CompilerServices.RuntimeHelpers.RunClassConstructor_Patch1 (System.RuntimeTypeHandle)
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.StaticConstructorOnStartupUtility.CallAll_Patch2 ()
Verse.PlayDataLoader/<>c:<DoPlayLoad>b__4_4 ()
Verse.LongEventHandler:ExecuteToExecuteWhenFinished ()
Verse.LongEventHandler:UpdateCurrentAsynchronousEvent ()
Verse.LongEventHandler:LongEventsUpdate (bool&)
(wrapper dynamic-method) MonoMod.Utils.DynamicMethodDefinition:Verse.Root.Update_Patch1 (Verse.Root)
Verse.Root_Entry:Update ()

Does anybody know if Author abandoned the mod?

guys, I found that the issue, at least for me, was the scenario, I used a new one and one of the standard and it generated the islands

for me the islands generate but there's a crash every time i try to land on them