@Killertjuh
A little tip if you didnt already know which you might find useful for interpreting firewall logs, in Status, System Logs, Settings tab, there is a drop down option called Filter Descriptions.
If you change it to Display as Column, you can see which rule blocked the packet which can make things easier to workout what rules might be in the wrong order or not correct in some way.
fwiw.
Edit. I also increase the GUI Log Entries to Display on the same tab to 2000 which is handy for seeing more info and I see you already have your logs set to display in reverse order. The increase is necessary when you have lots of traffic and/or interfaces and theres nothing stopping you from right mouse clicking on the Firewall, Normal View tab so you get a new browser tab opened up showing the latest firewall log, if you need to see more than say 2000 entries from the gui.