diff --git a/crates/effects/src/stylize2.rs b/crates/effects/src/stylize2.rs
index d1020b1bc..94eda6370 100644
--- a/crates/effects/src/stylize2.rs
+++ b/crates/effects/src/stylize2.rs
@@ -827,8 +827,8 @@ mod tests {
             0.0,
         );
         assert_eq!((out.img.width, out.img.height), (10, 8));
-        for (x, mirrored) in [(2u32, 0u32), (7, 9)] {
-            for y in 0..out.img.height {
+        for (x, mirrored) in [(2i64, 0i64), (7, 9)] {
+            for y in 0..i64::from(out.img.height) {
                 let a = out.img.get(x, y);
                 assert!((a[3] - 1.0).abs() < 1e-5, "fold x={x},y={y} faded to alpha {}", a[3]);
                 let b = img.get(mirrored, y);
diff --git a/crates/engine/src/cmd/model3d.rs b/crates/engine/src/cmd/model3d.rs
index f4e62f6b7..37a70db00 100644
--- a/crates/engine/src/cmd/model3d.rs
+++ b/crates/engine/src/cmd/model3d.rs
@@ -245,7 +245,7 @@ fn apply_material(l: &mut Layer, p: &Value, t: Tick, cmd: &str) -> Result<Vec<&'
 fn material_mismatch(l: Option<&Layer>, missing: &[&str]) -> EngineError {
     let names = missing.iter().map(|k| format!("`{k}`")).collect::<Vec<_>>().join(", ");
     let Some(l) = l else { return bad("material.set", format!("no layer has {names}")) };
-    let Some(g) = l.props.sub("materialOptions") else { return bad("material.set", format!("`{}` has no Material Options", l.name)) };
+    let Some(g) = l.props.sub("materialOptions") else { return bad("material.set", format!("`{}` has no Material Options, so it has no {names}", l.name)) };
     let has: Vec<&str> = g.children.iter().map(|c| c.match_id()).collect();
     let why = if matches!(l.source, LayerSource::Model { .. }) { ": a 3D model layer keeps its model file's materials" } else { "" };
     bad(
diff --git a/crates/interchange/src/import.rs b/crates/interchange/src/import.rs
index 6831103a7..b7095ae1f 100644
--- a/crates/interchange/src/import.rs
+++ b/crates/interchange/src/import.rs
@@ -185,6 +185,9 @@ pub fn import(
 const EDL_MEDIA_TIME_NOTE: &str = "EDL source timecodes were imported as media time";
 
 /// An EDL's source times are its source timecodes, which FilmCraft's reader keeps as media time.
+/// The largest start timecode, in frames, a file may have: a day at 1000 fps.
+const MAX_FILE_TIMECODE: i64 = 24 * 3600 * 1000;
+
 /// Put the clips of each file that has a start timecode on the file's own time, as FilmCraft does
 /// when it links the media of an imported EDL. Returns the names of the media that stay on
 /// timecode though their clips use an hour or more of it (the file is missing or has none).
@@ -212,7 +215,9 @@ fn rebase_to_file_timecode(project: &mut fp::Project, probe: &mut dyn FnMut(&str
     let mut left = Vec::new();
     for (id, name, path, offline) in files {
         match if offline { None } else { probe(&path) } {
-            Some(Footage { file_timecode: Some(tc), native_rate, frame_rate, .. }) => {
+            // A corrupt timecode past a day of frames (at up to 1000 fps) would overflow the tick
+            // arithmetic; such a file stays on timecode.
+            Some(Footage { file_timecode: Some(tc), native_rate, frame_rate, .. }) if (0..=MAX_FILE_TIMECODE).contains(&tc) => {
                 filmcraft_interchange::rebase_source_timecode(project, id, tc, crate::rate_out(native_rate.unwrap_or(frame_rate)));
             }
             _ if on_timecode.contains(&id) => left.push(name),
diff --git a/crates/project/src/item.rs b/crates/project/src/item.rs
index 047f1ef3f..ae66557a4 100644
--- a/crates/project/src/item.rs
+++ b/crates/project/src/item.rs
@@ -12,7 +12,7 @@ pub(crate) fn numbered_name(base: &str, taken: impl Fn(&str) -> bool) -> String
     let head = base.trim_end_matches(|c: char| c.is_ascii_digit());
     let stem = match head.strip_suffix(' ') {
         Some(stem) if head.len() < base.len() && !stem.trim_end().is_empty() => stem.trim_end(),
-        _ => base,
+        _ => base.trim_end(),
     };
     (2u64..).map(|k| format!("{stem} {k}")).find(|n| !taken(n)).unwrap_or_default()
 }
diff --git a/crates/ui-egui/tests/it/ui_scrolling.rs b/crates/ui-egui/tests/it/ui_scrolling.rs
index 001eb4503..2913a6770 100644
--- a/crates/ui-egui/tests/it/ui_scrolling.rs
+++ b/crates/ui-egui/tests/it/ui_scrolling.rs
@@ -409,13 +409,13 @@ fn panel_rows_stop_before_their_scroll_bar() {
         assert!(scrolled(&h, bar).1 > 0.0, "{bar}: the rows overflow");
         let track = rect(&h, bar);
         if let Some(right) = rightmost(&h, prefix, bar, Some(track)) {
-            if right > track.min.x { eprintln!("MUT {}", format!("{bar}: the rows end at {right}, on the track {track:?}")); }
+            assert!(right <= track.min.x, "{bar}: the rows end at {right}, on the track {track:?}");
         } else {
             assert!(matches!(bar, "info.scroll" | "markers.scroll"), "{bar}: no rows beside the track");
         }
         let lane = Rect::from_x_y_ranges(track.min.x..=track.max.x, track.y_range());
         for (text, at) in painted_text(&h) {
-            if at.intersects(lane) { eprintln!("MUT {}", format!("{bar}: {text:?} shows at {at:?}, on the track {track:?}")); }
+            assert!(!at.intersects(lane), "{bar}: {text:?} shows at {at:?}, on the track {track:?}");
         }
     }
     let _ = std::fs::remove_dir_all(&folder);