Pre-Launch UI Checks: What to Verify Before Ship

Prefab is in the project and logic is wired, yet the test build can still fail UI checks: Editor looks fine but Safe Area clips on device; English fits but German overflows; the home screen has the event skin but popups still use old art.

Design handoff checklist covers delivery. Engine import + MCP checklist covers first Play. This post only adds pre-ship items—no repeat of Raycast, draw calls, or Canvas Scaler; re-smoke anything already passed at import along the main flow.

---

6 checks before ship

#	Check	Common failure
1	Device main flow: target portrait + common aspect ratios (e.g. 19.5:9); test rotation if supported	Editor 16:9 only; notch clip, tap offset
2	Every live locale on home + popups	German / Spanish overflow, clipped button copy
3	Event / season reskin on all entry points (popups, badge layers)	New home skin, old popup skin
4	Numbers, timers, currency match design tables	Placeholders, wrong format
5	Dev / Release builds each load main UI once	Addressables / assets missing in build
6	Test build UI matches repo Prefabs	Scene-only edits, build not updated

Unity UGUI examples; Godot Control / Cocos UI map the same way.

---

Where to fix

Symptom	Path
Device clip, layout drift	Edit Prefab, or Studio structured re-export
Locale overflow	UI translate / text layers; Auto Layout headroom in design
Inconsistent event skin	Studio reskin full-tree re-export
Blurry display type / damage numbers	Bitmap font or TMP

Logic and binding issues belong to the engine import + MCP checklist—not expanded here.

---

FAQ

Overlap with the “10 engine checks”?
Engine list = first Play. This list = device, locales, Release builds, event skins.

Small team split?
Engineering: 1, 5, 6. Design/producer: 2, 4. QA (if any): 1–5. Designer spot-check: 3. ~30 minutes device smoke on main flow; locales: 2–3 longest + home and key popups.

Hotfix UI in Release with images only?
Use Prefab / asset hotfix and commit—do not leave changes on a test Scene only.