Added in comments about Beastform failing

module/applications/sheets-configs/token-config-mixin.mjs

@@ -69,7 +69,7 @@ export default function DHTokenConfigMixin(Base) {
 
             const deletions = { actorId: _del, actorLink: _del };
             const mergeOptions = { inplace: false, performDeletions: true };
-            this._preview.updateSource(mergeObject(changes, deletions, mergeOptions));
+            this._preview.updateSource(foundry.utils.mergeObject(changes, deletions, mergeOptions));
 
             if (this._preview?.object?.destroyed === false) {
                 this._preview.object.initializeSources();

module/documents/token.mjs

@@ -542,4 +542,62 @@ export default class DHToken extends CONFIG.Token.documentClass {
             game.system.registeredTriggers.unregisterItemTriggers(this.actor.items);
         }
     }
+
+    /* V14 TEMP until foundry fixes: https://discord.com/channels/170995199584108546/1421197211194228907/1467296028700049566 */
+    _onRelatedUpdate(update = {}, operation = {}) {
+        this.#refreshOverrides(operation);
+        this._prepareBars();
+
+        // Update tracked Combat resource
+        const combatant = this.combatant;
+        if (combatant) {
+            const isActorUpdate = [this, null, undefined].includes(operation.parent);
+            const resource = game.combat.settings.resource;
+            const updates = Array.isArray(update) ? update : [update];
+            if (isActorUpdate && resource && updates.some(u => foundry.utils.hasProperty(u.system ?? {}, resource))) {
+                combatant.updateResource();
+            }
+            ui.combat.render();
+        }
+
+        // Trigger redraws on the token
+        if (this.parent.isView) {
+            if (this.object?.hasActiveHUD) canvas.tokens.hud.render();
+            this.object?.renderFlags.set({ redrawEffects: true });
+            for (const key of ['bar1', 'bar2']) {
+                const name = `${this.object?.objectId}.animate${key.capitalize()}`;
+                const easing = foundry.canvas.animation.CanvasAnimation.easeInOutCosine;
+                this.object?.animate({ [key]: this[key] }, { name, easing });
+            }
+            for (const app of foundry.applications.sheets.TokenConfig.instances()) {
+                app._preview?.updateSource({ delta: this.toObject().delta }, { diff: false, recursive: false });
+                app._preview?.object?.renderFlags.set({ refreshBars: true, redrawEffects: true });
+            }
+        }
+    }
+
+    /* V14 TEMP until foundry fixes: https://discord.com/channels/170995199584108546/1421197211194228907/1467296028700049566 */
+    #refreshOverrides(operation) {
+        if (!this.actor) return;
+
+        const { deepClone, mergeObject, equals, isEmpty } = foundry.utils;
+        const oldOverrides = deepClone(this._overrides) ?? {};
+        const newOverrides = deepClone(this.actor?.tokenOverrides ?? {}, { prune: true });
+        if (!equals(oldOverrides, newOverrides)) {
+            this._overrides = newOverrides;
+            this.reset();
+
+            // Send emulated update data to the PlaceableObject
+            if (!canvas.ready || canvas.scene !== this.scene) return;
+            const { width, height, depth, ...changes } = mergeObject(
+                mergeObject(oldOverrides, this, { insertKeys: false, insertValues: false }),
+                this._overrides
+            );
+            this.object?._onUpdate(changes, {}, game.user.id);
+
+            // Hand off size changes to a secondary handler requiring downstream implementation.
+            const sizeChanges = deepClone({ width, height, depth }, { prune: true });
+            if (!isEmpty(sizeChanges)) this._onOverrideSize(sizeChanges, operation);
+        }
+    }
 }