diff --git a/src/core/hle/service/boss/online_service.cpp b/src/core/hle/service/boss/online_service.cpp
index 8e3ab7c56d..2ae967e478 100644
--- a/src/core/hle/service/boss/online_service.cpp
+++ b/src/core/hle/service/boss/online_service.cpp
@@ -229,9 +229,10 @@ std::vector<FileSys::Entry> OnlineService::GetBossExtDataFiles(
     do {
         boss_files.resize(boss_files.size() + files_to_read);
         entry_count = dir->Read(files_to_read, boss_files.data() + (i++ * files_to_read));
-    } while (files_to_read <= entry_count);
+    } while (entry_count > files_to_read);
 
-    boss_files.resize(i * files_to_read + entry_count);
+    // Resize to trim off unused entries from the final read.
+    boss_files.resize((i - 1) * files_to_read + entry_count);
     return boss_files;
 }
 
@@ -485,6 +486,7 @@ Result OnlineService::SendProperty(const u16 id, const u32 size, Kernel::MappedB
     std::visit(overload{[&](u8& cur_prop) { read_pod(cur_prop); },
                         [&](u16& cur_prop) { read_pod(cur_prop); },
                         [&](u32& cur_prop) { read_pod(cur_prop); },
+                        [&](u64& cur_prop) { read_pod(cur_prop); },
                         [&](std::vector<u8>& cur_prop) { read_vector(cur_prop); },
                         [&](std::vector<u32>& cur_prop) { read_vector(cur_prop); }},
                prop);
@@ -521,6 +523,7 @@ Result OnlineService::ReceiveProperty(const u16 id, const u32 size, Kernel::Mapp
     std::visit(overload{[&](u8& cur_prop) { write_pod(cur_prop); },
                         [&](u16& cur_prop) { write_pod(cur_prop); },
                         [&](u32& cur_prop) { write_pod(cur_prop); },
+                        [&](u64& cur_prop) { write_pod(cur_prop); },
                         [&](std::vector<u8>& cur_prop) { write_vector(cur_prop); },
                         [&](std::vector<u32>& cur_prop) { write_vector(cur_prop); }},
                prop);
diff --git a/src/core/hle/service/boss/online_service.h b/src/core/hle/service/boss/online_service.h
index 6d20bc1e56..a80fceedec 100644
--- a/src/core/hle/service/boss/online_service.h
+++ b/src/core/hle/service/boss/online_service.h
@@ -113,7 +113,7 @@ struct BossSSData {
     std::array<u8, URL_SIZE> url;
 };
 
-using BossTaskProperty = std::variant<u8, u16, u32, std::vector<u8>, std::vector<u32>>;
+using BossTaskProperty = std::variant<u8, u16, u32, u64, std::vector<u8>, std::vector<u32>>;
 struct BossTaskProperties {
     bool task_result;
     std::map<PropertyID, BossTaskProperty> properties{
@@ -145,6 +145,25 @@ struct BossTaskProperties {
         {static_cast<PropertyID>(0x1A), u8()},
         {static_cast<PropertyID>(0x1B), u32()},
         {static_cast<PropertyID>(0x1C), u32()},
+        {static_cast<PropertyID>(0x1D), u8()},
+        {static_cast<PropertyID>(0x1E), u8()},
+        {static_cast<PropertyID>(0x1F), u8()},
+        {static_cast<PropertyID>(0x20), u8()},
+        {static_cast<PropertyID>(0x21), u8()},
+        {static_cast<PropertyID>(0x22), u8()},
+        {static_cast<PropertyID>(0x23), u32()},
+        {static_cast<PropertyID>(0x24), u8()},
+        {static_cast<PropertyID>(0x25), u32()},
+        {static_cast<PropertyID>(0x26), u32()},
+        {static_cast<PropertyID>(0x27), u32()},
+        {static_cast<PropertyID>(0x28), u64()},
+        {static_cast<PropertyID>(0x29), u64()},
+        {static_cast<PropertyID>(0x2A), u32()},
+        {static_cast<PropertyID>(0x2B), u32()},
+        {static_cast<PropertyID>(0x2C), u8()},
+        {static_cast<PropertyID>(0x2D), u16()},
+        {static_cast<PropertyID>(0x2E), u16()},
+        {static_cast<PropertyID>(0x2F), std::vector<u8>(0x40)},
         {PropertyID::TotalTasks, u16()},
         {PropertyID::TaskIdList, std::vector<u8>(TASKIDLIST_SIZE)},
         {static_cast<PropertyID>(0x3B), u32()},