diff --git a/knownBugs.txt b/knownBugs.txt
index 68d0993..1299f38 100644
--- a/knownBugs.txt
+++ b/knownBugs.txt
@@ -1,8 +1,2 @@
-history tool doesn't load polygon data on undo if project was loaded
-history tool doesn't save delete Layer
-history tool creates to many layers
-history tool resets polygon data to late and on the wrong position
-
-
 Gradient breaks Heap Size, when big width and height (appeared on 1280x720)
 Heap block at 0000000025422990 modified at 0000000025422A28 past requested size of 88
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