Two errors noted if used in 1.6, may still have been there in 1.5:

TraderKindDef not found

and

Could not execute post-long-event action. Exception: System.AggregateException: One or more errors occurred. (Type ZoologicalOrbitalTraders.ZoologicalOribitalTradersStockGenerator has invalid vtable method slot 6 with method none) ---> System.TypeLoadException: Type ZoologicalOrbitalTraders.ZoologicalOribitalTradersStockGenerator has invalid vtable method slot 6 with method none
[Ref F3181B77]
(wrapper managed-to-native) System.RuntimeType.GetFields_native(System.RuntimeType,intptr,System.Reflection.BindingFlags,System.RuntimeType/MemberListType)
at System.RuntimeType.GetFields_internal (System.String name, System.Reflection.BindingFlags bindingAttr, System.RuntimeType+MemberListType listType, System.RuntimeType reflectedType) [0x0001b] in <51fded79cd284d4d911c5949aff4cb21>:0
at System.RuntimeType.GetFieldCandidates (System.String name, System.Reflection.BindingFlags bindingAttr, System.Boolean allowPrefixLookup) [0x0000f] in <51fded79cd284d4d911c5949aff4cb21>:0
at System.RuntimeType.GetFields (System.Reflection.BindingFlags bindingAttr) [0x00000] in <51fded79cd284d4d911c5949aff4cb21>:0
at Verse.StaticConstructorOnStartupUtility+<>c__DisplayClass2_0.<ReportProbablyMissingAttributes>b__0 (System.Type t) [0x00009] in <24d25868955f4df08b02c73b55f389fe>:0
at System.Threading.Tasks.Parallel+<>c__DisplayClass33_0`2[TSource,TLocal].<ForEachWorker>b__0 (System.Int32 i) [0x00012] in <51fded79cd284d4d911c5949aff4cb21>:0
at System.Threading.Tasks.Parallel+<>c__DisplayClass19_0`1[TLocal].<ForWorker>b__1 (System.Threading.Tasks.RangeWorker& currentWorker, System.Int32 timeout, System.Boolean& replicationDelegateYieldedBeforeCompletion) [0x000cf] in <51fded79cd284d4d911c5949aff4cb21>:0
--- End of stack trace from previous location where exception was thrown ---


The impact of these is that they may break other orbital traders, and some mods' config menus, notably RIMMSqol.