[Is the 180 day limit still a thing in 1.25?]

I ran out to 350 days and no new research or bigger alien ships spawned, unable to complete the game.

[[27.4] CTD when entering Alien Base]

exactly the same issue

 

2023-05-26 16:49:11,644 [FATAL] (F:\Jenkins\workspace\X2 (Build)\release-0.78.x\Assets\Code\Screens\XenonautsMain.cs:938) 
[INITIAL CRASH]
System.ArgumentNullException: Argument cannot be null.
Parameter name: source
  at System.Linq.Check.Source (System.Object source) [0x00000] in <filename unknown>:0 
  at System.Linq.Enumerable.Any[Entity] (IEnumerable`1 source) [0x00000] in <filename unknown>:0 
  at Xenonauts.GroundCombat.GroundCombatLogicSystem.<MoveCameraToCentreOnSelectedCombatantAndEquipWeapons>m__21 () [0x000a0] in F:\Jenkins\workspace\X2 (Build)\release-0.78.x\Assets\Code\Screens\GroundCombat\Systems\GroundCombatLogicSystem.cs:823 
  at Artitas.Components.PromiseEventExtensions+<AddPromise>c__AnonStorey0.<>m__1 () [0x00007] in F:\Jenkins\workspace\X2 (Build)\release-0.78.x\Assets\Code\Libraries\Artitas\Artitas.Core\Code\Systems\DelayedTaskSystem.cs:84 
  at RSG.Promise+<>c__DisplayClass53_0.<Then>b__0 () [0x00000] in <filename unknown>:0 
  at RSG.Promise.InvokeResolveHandler (System.Action callback, IRejectable rejectable) [0x00000] in <filename unknown>:0 

2023-05-26 16:49:11,649 [FATAL] (F:\Jenkins\workspace\X2 (Build)\release-0.78.x\Assets\Code\Screens\XenonautsMain.cs:720) 
Exception in Unity lifecycle, marked as handled: ArgumentNullException: [INITIAL CRASH] - Argument cannot be null.
Parameter name: source
Parameter name: source 
 System.Linq.Check.Source (System.Object source)
System.Linq.Enumerable.Any[Entity] (IEnumerable`1 source)
Xenonauts.GroundCombat.GroundCombatLogicSystem.<MoveCameraToCentreOnSelectedCombatantAndEquipWeapons>m__21 () (at F:/Jenkins/workspace/X2 (Build)/release-0.78.x/Assets/Code/Screens/GroundCombat/Systems/GroundCombatLogicSystem.cs:823)
Artitas.Components.PromiseEventExtensions+<AddPromise>c__AnonStorey0.<>m__1 () (at F:/Jenkins/workspace/X2 (Build)/release-0.78.x/Assets/Code/Libraries/Artitas/Artitas.Core/Code/Systems/DelayedTaskSystem.cs:84)
RSG.Promise+<>c__DisplayClass53_0.<Then>b__0 ()
RSG.Promise.InvokeResolveHandler (System.Action callback, IRejectable rejectable)
UnityEngine.Debug:LogException(Exception)
Common.Logging.UnityLogAppender:Append(LoggingEvent) (at F:/Jenkins/workspace/X2 (Build)/release-0.78.x/Assets/Code/Libraries/Common/Code/Debug/Logging/UnityLogAppender.cs:43)
log4net.Appender.AppenderSkeleton:DoAppend(LoggingEvent) (at c:/log4net/tags/1.2.15RC1/src/Appender/AppenderSkeleton.cs:317)
log4net.Util.AppenderAttachedImpl:AppendLoopOnAppenders(LoggingEvent) (at c:/log4net/tags/1.2.15RC1/src/Util/AppenderAttachedImpl.cs:92)
log4net.Repository.Hierarchy.Logger:CallAppenders(LoggingEvent) (at c:/log4net/tags/1.2.15RC1/src/Repository/Hierarchy/Logger.cs:576)
log4net.Repository.Hierarchy.Logger:ForcedLog(Type, Level, Object, Exception) (at c:/log4net/tags/1.2.15RC1/src/Repository/Hierarchy/Logger.cs:688)
log4net.Repository.Hierarchy.Logger:Log(Type, Level, Object, Exception) (at c:/log4net/tags/1.2.15RC1/src/Repository/Hierarchy/Logger.cs:428)
log4net.Core.LogImpl:Fatal(Object, Exception) (at c:/log4net/tags/1.2.15RC1/src/Core/LogImpl.cs:983)
Xenonauts.XenonautsMain:OnApplicationQuit() (at F:/Jenkins/workspace/X2 (Build)/release-0.78.x/Assets/Code/Screens/XenonautsMain.cs:938)
 

[v27.2 CTD upon researching X55]

Exactly the same issue:

 

2023-05-20 17:57:13,337 [FATAL] (F:\Jenkins\workspace\X2 (Build)\release-0.78.x\Assets\Code\Libraries\Common\Code\UI\UIController\AUILayoutController.cs:169) 
Exception occurred during handling of 372 Xenopedia Entry - X-55 Phantom Interceptor [Unlocked:True] for controller xenopedia_entry_component_interceptor(Clone) of type ComposableXenopediaEntryController
System.Collections.Generic.KeyNotFoundException: The given key was not present in the dictionary.
  at System.Collections.Generic.Dictionary`2[System.String,System.Object].get_Item (System.String key) [0x000a8] in /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Collections.Generic/Dictionary.cs:151 
  at Artitas.Components.DictionaryComponent`3[TKey,TValue,TComponent].get_Item (.TKey key) [0x00008] in F:\Jenkins\workspace\X2 (Build)\release-0.78.x\Assets\Code\Libraries\Artitas\Artitas.Core\Code\Components\CollectionComponents.cs:495 
  at Common.UI.Tooltips.RepeatableTextFormatterScribanContextKeyTarget.Apply (IComposable target) [0x0000d] in F:\Jenkins\workspace\X2 (Build)\release-0.78.x\Assets\Code\Libraries\Common\Code\UI\Tooltips\StateControl\RepeatableTextFormatterTargetSelectors.cs:54 
  at Common.UI.Tooltips.RepeatableTextFormatterBehaviour.Apply (IComposable composable) [0x00024] in F:\Jenkins\workspace\X2 (Build)\release-0.78.x\Assets\Code\Libraries\Common\Code\UI\Tooltips\StateControl\RepeatableTextFormatterBehaviour.cs:46 
  at Common.UI.UIController.ComposableContextController.Apply (IComposable target) [0x00034] in F:\Jenkins\workspace\X2 (Build)\release-0.78.x\Assets\Code\Libraries\Common\Code\UI\UIController\ComposableContextController.cs:74 
  at Common.UI.UIController.ComposableContextController.OnSetTarget () [0x0000e] in F:\Jenkins\workspace\X2 (Build)\release-0.78.x\Assets\Code\Libraries\Common\Code\UI\UIController\ComposableContextController.cs:40 
  at Xenonauts.Common.Xenopedia.ComposableXenopediaEntryController.OnSetTarget () [0x00002] in F:\Jenkins\workspace\X2 (Build)\release-0.78.x\Assets\Code\Screens\Common\Xenopedia\ComposableXenopediaEntryController.cs:15 
  at Common.UI.DataStructures.UIController`1[T].SetTarget (.T target) [0x0002c] in F:\Jenkins\workspace\X2 (Build)\release-0.78.x\Assets\Code\Libraries\Common\Code\UI\UIController\UIController.cs:118 
  at Common.UI.DataStructures.AUILayoutController`2[Xenonauts.Common.Xenopedia.ComposableXenopediaEntryController,Artitas.Entity].Add (Artitas.Entity target, Boolean animate) [0x000ba] in F:\Jenkins\workspace\X2 (Build)\release-0.78.x\Assets\Code\Libraries\Common\Code\UI\UIController\AUILayoutController.cs:164 

2023-05-20 17:57:13,357 [FATAL] (F:\Jenkins\workspace\X2 (Build)\release-0.78.x\Assets\Code\Screens\XenonautsMain.cs:720) 
Exception in Unity lifecycle, marked as handled: KeyNotFoundException: Exception occurred during handling of 372 Xenopedia Entry - X-55 Phantom Interceptor [Unlocked:True] for controller xenopedia_entry_component_interceptor[Clone] of type ComposableXenopediaEntryController - The given key was not present in the dictionary. 
 System.Collections.Generic.Dictionary`2[System.String,System.Object].get_Item (System.String key) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Collections.Generic/Dictionary.cs:151)
Artitas.Components.DictionaryComponent`3[TKey,TValue,TComponent].get_Item (.TKey key) (at F:/Jenkins/workspace/X2 

[wrong choice on xsolla mail, for Chris]

Same problem here. I wanted to switch to Steam, but got switched to GoG.