diff --git a/CodeLegacy/Ui/InterpolationProgress.cs b/CodeLegacy/Ui/InterpolationProgress.cs
index 9f6d0ea..1473d08 100644
--- a/CodeLegacy/Ui/InterpolationProgress.cs
+++ b/CodeLegacy/Ui/InterpolationProgress.cs
@@ -103,7 +103,7 @@ namespace Flowframes.Ui
             {
                 if (!progressPaused && AiProcess.processTime.IsRunning)
                 {
-                    string lastLogLine = Logger.GetSessionLogLastLines(logFile, 1)?.Where(x => x.Contains("frame=")).LastOrDefault();
+                    string lastLogLine = Logger.GetSessionLogLastLines(logFile, 1)?.Where(x => x != null && x.Contains("frame=")).LastOrDefault();
                     int num = lastLogLine == null ? 0 : lastLogLine.Split("frame=")[1].Split("fps=")[0].GetInt();
 
                     if(num > 0)