From 1042ab8d16956ded6615691ec8aabd9a1a27a674 Mon Sep 17 00:00:00 2001
From: Ekaterina Chantsova <chantsova.ekaterina@gmail.com>
Date: Wed, 11 Jun 2025 19:29:59 +0300
Subject: [PATCH] UI: fixed updating timewindow configuration

---
 ui-ngx/src/app/shared/models/time/time.models.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ui-ngx/src/app/shared/models/time/time.models.ts b/ui-ngx/src/app/shared/models/time/time.models.ts
index acb62d9d2a..c204cb6867 100644
--- a/ui-ngx/src/app/shared/models/time/time.models.ts
+++ b/ui-ngx/src/app/shared/models/time/time.models.ts
@@ -431,7 +431,7 @@ export const initModelFromDefaultTimewindow = (value: Timewindow, quickIntervalO
       if (isDefined(value.history.quickInterval)) {
         model.history.quickInterval = value.history.quickInterval;
       }
-      if (isDefined(value.history.fixedTimewindow)) {
+      if (isDefinedAndNotNull(value.history.fixedTimewindow)) {
         if (isDefined(value.history.fixedTimewindow.startTimeMs)) {
           model.history.fixedTimewindow.startTimeMs = value.history.fixedTimewindow.startTimeMs;
         }