diff --git a/CHANGELOG.md b/CHANGELOG.md
index ac842d94..984f8dcd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,11 @@ Instructions: Add a subsection under `[Unreleased]` for additions, fixes, change
 
 ## [Unreleased]
 
+### Fixed
+
+- Bug that prevented building a project that contained dynamic FITB questions.
+- Consistent alignment of slide content.
+
 ## [2.48.0] - 2026-08-08
 
 Includes updates to core through commit: [6f1b557](https://github.com/PreTeXtBook/pretext/commit/6f1b557cb7aed2b86eb40187c21b56009f97ea1b)
diff --git a/pretext/__init__.py b/pretext/__init__.py
index eddd1600..e6589b69 100644
--- a/pretext/__init__.py
+++ b/pretext/__init__.py
@@ -18,7 +18,7 @@
 
 VERSION = get_version("pretext", Path(__file__).parent.parent)
 
-CORE_COMMIT = "6f1b557cb7aed2b86eb40187c21b56009f97ea1b"
+CORE_COMMIT = "94cd93d9e175822173f5a4d89870b346aedd6717"
 
 
 def activate() -> None:
diff --git a/tests/examples/projects/dynamic-fillin/project.ptx b/tests/examples/projects/dynamic-fillin/project.ptx
new file mode 100644
index 00000000..1ce8e5d8
--- /dev/null
+++ b/tests/examples/projects/dynamic-fillin/project.ptx
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- This file, the project manifest, provides the overall configuration for your PreTeXt project. -->
+<project ptx-version="2">
+  <targets>
+    <target name="web" format="html" />
+  </targets>
+</project>
diff --git a/tests/examples/projects/dynamic-fillin/source/main.ptx b/tests/examples/projects/dynamic-fillin/source/main.ptx
new file mode 100644
index 00000000..6d808b4c
--- /dev/null
+++ b/tests/examples/projects/dynamic-fillin/source/main.ptx
@@ -0,0 +1,57 @@
+<?xml version='1.0' encoding='utf-8'?>
+<pretext>
+  <article>
+    <title>Hello World!</title>
+    <p>This is a PreTeXt document.</p>
+    <exercise xml:id="exercise-webwork">
+      <webwork>
+        <pg-code>
+          $a = Compute(random(1, 9, 1));
+          $b = Compute(random(1, 9, 1));
+          $c = $a + $b;
+        </pg-code>
+        <statement>
+          <p>
+            Compute the sum of <m><var name="$a" /></m> and <m><var name="$b" /></m>:
+          </p>
+          <p>
+            <m><var name="$a" /> + <var name="$b" /> =</m> <var name="$c" width="5" />
+          </p>
+        </statement>
+        <hint>
+          <p>
+            Add <m><var name="$a" /></m> and <m><var name="$b" /></m> together.
+          </p>
+        </hint>
+        <solution>
+          <p>
+            <m><var name="$a" /> + <var name="$b" /> = <var name="$c" /></m>.
+          </p>
+        </solution>
+      </webwork>
+    </exercise>
+    <exercise xml:id="exercise-dynamic-fillin">
+      <title>Dynamic Fill-In-The-Blank</title>
+      <statement>
+        <p>
+          What is <m><eval obj="a" /> + <eval obj="b" /></m>?
+          <fillin mode="number" ansobj="sum" width="5" />
+        </p>
+      </statement>
+      <setup seed="42">
+        <de-object name="a" context="number">
+          <de-random distribution="discrete" min="1" max="9" />
+        </de-object>
+        <de-object name="b" context="number">
+          <de-random distribution="discrete" min="1" max="9" />
+        </de-object>
+        <de-object name="sum" context="number">
+          <de-number>a+b</de-number>
+        </de-object>
+      </setup>
+      <evaluation>
+        <evaluate />
+      </evaluation>
+    </exercise>
+  </article>
+</pretext>
diff --git a/tests/test_cli.py b/tests/test_cli.py
index 98e57526..36664c41 100644
--- a/tests/test_cli.py
+++ b/tests/test_cli.py
@@ -49,6 +49,7 @@
 HAS_XELATEX = check_installed(["xelatex", "--version"])
 HAS_ASY = check_installed(["asy", "--version"])
 HAS_SAGE = check_installed(["sage", "--version"])
+HAS_NODE = check_installed(["node", "--version"])
 
 
 @contextmanager
@@ -730,6 +731,43 @@ def test_custom_webwork_server(tmp_path: Path, script_runner: ScriptRunner) -> N
     assert result.success
 
 
+@pytest.mark.skipif(
+    not HAS_NODE,
+    reason="Skipped since node isn't found (needed to extract dynamic substitutions).",
+)
+def test_build_webwork_and_dynamic_fillin(
+    tmp_path: Path, script_runner: ScriptRunner
+) -> None:
+    """A project mixing a WeBWorK exercise with a dynamic (randomized)
+    fill-in-the-blank exercise builds successfully.  The build must generate
+    both the webwork asset (a rendered PG problem, fetched from a webwork
+    server) and the dynamic-subs asset (the substitution file `pretext`
+    extracts via node so that a static rendering shows one consistent, if
+    randomized, version of the question)."""
+    project_path = tmp_path / "dynamic-fillin"
+    shutil.copytree(EXAMPLES_DIR / "projects" / "dynamic-fillin", project_path)
+    result = script_runner.run(
+        [PTX_CMD, "-v", "debug", "build", "web"], cwd=project_path
+    )
+    assert result.success
+
+    assert (
+        project_path / "generated-assets" / "webwork" / "exercise-webwork.xml"
+    ).exists()
+
+    subs_file = (
+        project_path / "generated-assets" / "dynamic_subs" / "dynamic_substitutions.xml"
+    )
+    assert subs_file.exists()
+    assert 'id="exercise-dynamic-fillin"' in subs_file.read_text()
+
+    output_dir = project_path / "output" / "web"
+    combined_html = "\n".join(p.read_text() for p in output_dir.glob("*.html"))
+    assert 'id="exercise-webwork"' in combined_html
+    assert 'id="rs-exercise-dynamic-fillin"' in combined_html
+    assert 'data-component="fillintheblank"' in combined_html
+
+
 # ---------------------------------------------------------------------------
 # 5. Validate
 #