diff --git a/lx/spectraImport.py b/lx/spectraImport.py
index ba8548253a4dbb4a747d472977dbda229a5ddb21..fee3c3e742e3b99070b661a527eed9c7bae5f69f 100644
--- a/lx/spectraImport.py
+++ b/lx/spectraImport.py
@@ -487,6 +487,10 @@ def doImport(options, scan, importDir, output, parent, listFiles, isTaken, isGro
 				nb_ms_peaks.append(ret[3])
 				nb_msms_scans.append(ret[4])
 				nb_msms_peaks.append(ret[5])
+			
+			from time import sleep
+			sleep(1) # dirty hack to reduce threading problem, give enough time for UI to update
+			# os if you enable memory logging it crashes in the same way
 
 
 		if not len(dictBasePeakIntensity.keys()) > 0: