diff --git a/LoopKit/TemporaryPreset.swift b/LoopKit/TemporaryPreset.swift
index edf0df3e0..1a88511bb 100644
--- a/LoopKit/TemporaryPreset.swift
+++ b/LoopKit/TemporaryPreset.swift
@@ -115,15 +115,15 @@ public struct PresetSymbol: Hashable, Sendable, Codable, RawRepresentable, Expre
     }
     
     public init(from decoder: any Decoder) throws {
-        let container = try decoder.container(keyedBy: CodingKeys.self)
-        if let symbolTypeValue = try container.decodeIfPresent(SymbolType.self, forKey: .symbolType) {
-            self.symbolType = symbolTypeValue
+        if let container = try? decoder.container(keyedBy: CodingKeys.self) {
+            self.symbolType = try container.decode(SymbolType.self, forKey: .symbolType)
             self.tint = try container.decodeIfPresent(SymbolTint.self, forKey: .tint)
             self.value = try container.decode(String.self, forKey: .value)
         } else {
+            let container = try decoder.singleValueContainer()
             self.symbolType = .emoji
             self.tint = nil
-            self.value = try container.decode(String.self, forKey: .symbolType)
+            self.value = try container.decode(String.self)
         }
     }
     
@@ -156,6 +156,10 @@ public struct PresetSymbol: Hashable, Sendable, Codable, RawRepresentable, Expre
             return nil
         }
     }
+    
+    public var isEmpty: Bool {
+        value.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty
+    }
 }
 
 public struct TemporaryPreset: Hashable, Sendable {
diff --git a/LoopKit/TemporaryScheduleOverride.swift b/LoopKit/TemporaryScheduleOverride.swift
index 7f479147e..167ef5b00 100644
--- a/LoopKit/TemporaryScheduleOverride.swift
+++ b/LoopKit/TemporaryScheduleOverride.swift
@@ -64,11 +64,8 @@ public struct ActivityPreset: Hashable, Identifiable, Sendable, RawRepresentable
             }
         }
         
-        private var defaultDuration: TemporaryScheduleOverride.Duration {
-            .finite(.hours(1))
-        }
         
-        public var defaultPreset: TemporaryPreset {
+        public func defaultPreset(duration: TemporaryScheduleOverride.Duration) -> TemporaryPreset {
             TemporaryPreset(
                 id: id,
                 symbol: symbol,
@@ -77,7 +74,7 @@ public struct ActivityPreset: Hashable, Identifiable, Sendable, RawRepresentable
                     targetRange: defaultTargetRange,
                     insulinNeedsScaleFactor: defaultInsulinNeedsScaleFactor
                 ),
-                duration: defaultDuration
+                duration: duration
             )
         }
     }
@@ -111,7 +108,7 @@ public struct ActivityPreset: Hashable, Identifiable, Sendable, RawRepresentable
     }
     
     public var isModifiedFromDefault: Bool {
-        preset != activityType.defaultPreset
+        preset != activityType.defaultPreset(duration: preset.duration)
     }
     
     public var id: String {
@@ -365,6 +362,8 @@ extension TemporaryScheduleOverride.Context: Codable {
                 self = .preMeal
             case CodableKeys.custom.rawValue:
                 self = .custom
+            case "legacyWorkout":
+                self = .custom
             default:
                 throw DecodingError.dataCorrupted(DecodingError.Context(codingPath: decoder.codingPath, debugDescription: "invalid enumeration"))
             }
diff --git a/LoopKitUI/ViewModels/TherapySettingsViewModel.swift b/LoopKitUI/ViewModels/TherapySettingsViewModel.swift
index e8965b427..81be18656 100644
--- a/LoopKitUI/ViewModels/TherapySettingsViewModel.swift
+++ b/LoopKitUI/ViewModels/TherapySettingsViewModel.swift
@@ -24,19 +24,16 @@ public class TherapySettingsViewModel {
     public var therapySettings: TherapySettings
     
     @ObservationIgnored private let initialTherapySettings: TherapySettings
-    @ObservationIgnored let sensitivityOverridesEnabled: Bool
     @ObservationIgnored public var prescription: Prescription?
 
     @ObservationIgnored private weak var delegate: TherapySettingsViewModelDelegate?
     
     public init(therapySettings: TherapySettings,
                 pumpSupportedIncrements: (() -> PumpSupportedIncrements?)? = nil,
-                sensitivityOverridesEnabled: Bool = false,
                 prescription: Prescription? = nil,
                 delegate: TherapySettingsViewModelDelegate? = nil) {
         self.therapySettings = therapySettings
         self.initialTherapySettings = therapySettings
-        self.sensitivityOverridesEnabled = sensitivityOverridesEnabled
         self.prescription = prescription
         self.delegate = delegate
     }