BUG at Synchronized Crosshair? (Vid attached)

Good Day

Attached a short video. I have 3 windows with different timeframes side by side. Bug appears when activating sync crosshair with shortcut only.

1. When I activate synchronized crosshair on the outer left window it works there, but on the middle and outer right window the horizontal line is missing.
2. When activating on the middle window it works at left and middle only, but not on the right one.  
3. When activating on the outer right window it works everywhere.
4. It doesnt matter how much chart windows are open and if they stacked on each other its always the same issue from left to right. So on a 5 window setup when I activate sync crosshair on number 3 (the middle one) the horizontal line is missing then on window 4 and 5. Window 1,2,3 are fine.  
5. But if I activate on outer left window 1 and then move the cursor out of the chart and then back into the charts its suddendly displayed correctly everywhere.
6. If activate on outer left window then move the cursor from left to right to the other windows, its displayed correctly at every chart the cursor passes.   
7. If I dont use shortcut but activate with mouse click on the menu its displayed everywhere fine.   
8. Timeframe combination doesnt matter. 
9. Issue is only at cTrader Desktop. cTrader Web is fine.

Thank you for your help.

Best regards

Robert Gutmann