diff --git a/Known-Issues-and-Workarounds.md b/Known-Issues-and-Workarounds.md
index 3cf41f7..09aba9b 100644
--- a/Known-Issues-and-Workarounds.md
+++ b/Known-Issues-and-Workarounds.md
@@ -44,6 +44,7 @@ This is a default Foundry functionality. They should get prompted to pick their
 - It is currently not possible to use custom icons for the fear tracker, only the 2 default options are available.
   - We are planning to provide more options, including a fully custom icon option, in the future.
 - An issue where all flying creatures difficulty keeps raising every time their adversary sheet is being opened.
+- An issue that is preventing custom subclasses and classes to work correctly. This is currently being investigated.
 
 ### Rogue