Index: runs.scm
==================================================================
--- runs.scm
+++ runs.scm
@@ -109,10 +109,13 @@
                       (pp *configdat*)
                       (pp call-chain)))
                   
 		  (exit 1))))
           ;;(bb-check-path msg: "runs:set-megatest-env-vars block 1.5")
+          (if (or (not *configdat*) (not (hash-table? *configdat*)))
+              (BB> "ERROR: *configdat* was inaccessible! This should never happen.  Brute force reread.")
+              (launch:setup force-reread: #t))
           (alist->env-vars (hash-table-ref/default *configdat* "env-override" '())))) ;;;; environment is tainted HERE in this let block.
     ;;(bb-check-path msg: "runs:set-megatest-env-vars block 2")
     ;; Lets use this as an opportunity to put MT_RUNNAME in the environment
     (let ((runname  (if inrunname inrunname (rmt:get-run-name-from-id run-id))))
       (if runname