diff --git a/goal_src/jak1/kernel/gstate.gc b/goal_src/jak1/kernel/gstate.gc
index 1fc3e7cf53..29ee50f60d 100644
--- a/goal_src/jak1/kernel/gstate.gc
+++ b/goal_src/jak1/kernel/gstate.gc
@@ -399,7 +399,11 @@ It type checks the arguments for the entry function.
 (defun send-event-function ((proc process-tree) (msg event-message-block))
   "Function to send an event to a process. Please use the send-event macros when possible"
   (with-pp
-    (when (and proc (!= (-> proc type) process-tree) (-> (the process proc) event-hook))
+    ;; og:preserve-this check that we have a _valid_ process. originally this just checked
+    ;; that type != process-tree, but sometimes we might get stale process ref (qbert-plat-master)
+    (when (and (valid? proc process #f #f 0)
+               (nonzero? (-> (the process proc) pid))
+               (-> (the process proc) event-hook))
       (let ((pp-backup pp))
         (set! pp (the process proc))
         (let ((result ((-> (the process proc) event-hook) (-> msg from) (-> msg num-params) (-> msg message) msg)))
diff --git a/goal_src/jak2/kernel/gstate.gc b/goal_src/jak2/kernel/gstate.gc
index db94c4fb61..c00c37af62 100644
--- a/goal_src/jak2/kernel/gstate.gc
+++ b/goal_src/jak2/kernel/gstate.gc
@@ -501,7 +501,11 @@ It type checks the arguments for the entry function.
 (defun send-event-function ((arg0 process-tree) (arg1 event-message-block))
   "Send an event block to a process."
   (with-pp
-    (when (and arg0 (!= (-> arg0 type) process-tree) (-> (the-as process arg0) event-hook) (-> arg1 from))
+    ;; og:preserve-this check that we have a _valid_ process. originally this just checked
+    ;; that type != process-tree, but sometimes we might get stale process ref (jak1 qbert-plat-master)
+    (when (and (valid? arg0 process (the-as string #f) #f 0)
+               (nonzero? (-> (the-as process arg0) pid))
+               (-> (the-as process arg0) event-hook) (-> arg1 from))
       (let ((gp-0 pp))
         (set! pp (the-as process arg0))
         (let ((v0-0 ((-> (the-as process arg0) event-hook) (-> arg1 from 0) (-> arg1 num-params) (-> arg1 message) arg1)))
diff --git a/goal_src/jak3/kernel/gstate.gc b/goal_src/jak3/kernel/gstate.gc
index 50d5ec6e55..f2b0e6c027 100644
--- a/goal_src/jak3/kernel/gstate.gc
+++ b/goal_src/jak3/kernel/gstate.gc
@@ -461,7 +461,11 @@
 
 (defun send-event-function ((arg0 process-tree) (arg1 event-message-block))
   (with-pp
-    (when (and arg0 (!= (-> arg0 type) process-tree) (-> (the-as process arg0) event-hook) (-> arg1 from))
+    ;; og:preserve-this check that we have a _valid_ process. originally this just checked
+    ;; that type != process-tree, but sometimes we might get stale process ref (jak1 qbert-plat-master)
+    (when (and (valid? arg0 process (the-as string #f) #f 0)
+               (nonzero? (-> (the-as process arg0) pid))
+               (-> (the-as process arg0) event-hook) (-> arg1 from))
       (let ((gp-0 pp))
         (set! pp (the-as process arg0))
         (let ((v0-0 ((-> (the-as process arg0) event-hook) (-> arg1 from 0) (-> arg1 num-params) (-> arg1 message) arg1)))