diff --git a/easystacks/software.eessi.io/2023.06/rebuilds/20251003-eb-4.8.2-Rust-1.65.0-a64fx-with-optarch.yml b/easystacks/software.eessi.io/2023.06/rebuilds/20251003-eb-4.8.2-Rust-1.65.0-a64fx-with-optarch.yml
new file mode 100644
index 0000000000..20c35ce358
--- /dev/null
+++ b/easystacks/software.eessi.io/2023.06/rebuilds/20251003-eb-4.8.2-Rust-1.65.0-a64fx-with-optarch.yml
@@ -0,0 +1,8 @@
+# 2025.10.03
+# Rust 1.65.0 had build failures on A64FX (related to its included LLVM),
+# and we worked around by using 1.75.0 and adding a dummy module file for 1.65.0.
+# It should be possible to build it with optarch=march=armv8.2-a, so we need to rebuild it.
+# 
+# See https://github.com/EESSI/software-layer/issues/1213
+easyconfigs:
+  - Rust-1.65.0-GCCcore-12.2.0.eb
diff --git a/easystacks/software.eessi.io/2023.06/rebuilds/20251003-eb-4.9.2-Python-3.10.8-ctypes-and-correct-Rust-dep-a64fx.yml b/easystacks/software.eessi.io/2023.06/rebuilds/20251003-eb-4.9.2-Python-3.10.8-ctypes-and-correct-Rust-dep-a64fx.yml
new file mode 100644
index 0000000000..4430918c04
--- /dev/null
+++ b/easystacks/software.eessi.io/2023.06/rebuilds/20251003-eb-4.9.2-Python-3.10.8-ctypes-and-correct-Rust-dep-a64fx.yml
@@ -0,0 +1,10 @@
+# 2025.10.03
+# Just to be sure and consistent, rebuild Python 3.10.8 with Rust 1.65.0 instead of 1.75.0.
+# See https://github.com/EESSI/software-layer/issues/1213
+#
+# Also make sure to include the ctypes fix again here.
+easyconfigs:
+  - Python-3.10.8-GCCcore-12.2.0.eb:
+      options:
+        # See https://github.com/easybuilders/easybuild-easyblocks/pull/3352
+        include-easyblocks-from-commit: 1ee17c0f7726c69e97442f53c65c5f041d65c94f
diff --git a/eessi-2023.06-known-issues.yml b/eessi-2023.06-known-issues.yml
index 28cc724ada..4e06f9a3de 100644
--- a/eessi-2023.06-known-issues.yml
+++ b/eessi-2023.06-known-issues.yml
@@ -1,4 +1,10 @@
-- aarch64/a64x:
+- aarch64/a64fx:
+  - LLVM-15.0.5-GCCcore-12.2.0.eb:
+    - issue: https://github.com/EESSI/software-layer/issues/1213
+    - info: "build failure: immediate offset out of range"
+  - Rust-1.65.0-GCCcore-12.2.0.eb:
+    - issue: https://github.com/EESSI/software-layer/issues/1213
+    - info: "same build failure as LLVM 15.0.5, as Rust includes LLVM 15"
   - SciPy-bundle-2023.07-gfbf-2023a:
     - issue: https://github.com/EESSI/software-layer/issues/318
     - info: "4 failing tests (vs 54407 passed) in scipy test suite"