diff --git a/core/src/mindustry/content/TechTree.java b/core/src/mindustry/content/TechTree.java
index a20917c054..4d3ba1700c 100644
--- a/core/src/mindustry/content/TechTree.java
+++ b/core/src/mindustry/content/TechTree.java
@@ -714,8 +714,14 @@ public class TechTree implements ContentList{
                 finishedRequirements[i] = new ItemStack(requirements[i].item, Core.settings == null ? 0 : Core.settings.getInt("req-" + content.name + "-" + requirements[i].item.name));
             }
 
+            var used = new ObjectSet<Content>();
+
             //add dependencies as objectives.
-            content.getDependencies(d -> objectives.add(new Research(d)));
+            content.getDependencies(d -> {
+                if(used.add(d)){
+                    objectives.add(new Research(d));
+                }
+            });
 
             map.put(content, this);
             all.add(this);
diff --git a/core/src/mindustry/content/Weathers.java b/core/src/mindustry/content/Weathers.java
index 2006e6fb05..8e3ea38a92 100644
--- a/core/src/mindustry/content/Weathers.java
+++ b/core/src/mindustry/content/Weathers.java
@@ -75,7 +75,7 @@ public class Weathers implements ContentList{
             attrs.set(Attribute.spores, 1f);
             attrs.set(Attribute.light, -0.15f);
             status = StatusEffects.sporeSlowed;
-            opacityMultiplier = 0.75f;
+            opacityMultiplier = 0.5f;
             force = 0.1f;
             sound = Sounds.wind;
             soundVol = 0.7f;
diff --git a/fastlane/metadata/android/en-US/changelogs/29744.txt b/fastlane/metadata/android/en-US/changelogs/29744.txt
new file mode 100644
index 0000000000..670ec7a7c0
--- /dev/null
+++ b/fastlane/metadata/android/en-US/changelogs/29744.txt
@@ -0,0 +1,5 @@
+[This is a truncated changelog, see Github for full notes]
+Yeah, it's another hotfix. I missed these during earlier testing.
+
+- Fixed research deadlock caused by blocks requiring optional inputs as research
+- Possible fix for "Unsupported combination of formats" startup error