fix: rotate back to 1 shell count

util.go

@@ -8,6 +8,9 @@ var ctrLck sync.Mutex
 func ctr() int {
 	ctrLck.Lock()
 	defer ctrLck.Unlock()
+	if curCtr >= 99 {
+		curCtr = 0
+	}
 	curCtr++
 	return curCtr
 }