Fixed Aegean Battleships: Map progress not working

[malgai]

Ingame Nick: malgai
Affected world(s): zz13
Browser: Chrome
Reproduction steps:

1. Clear all battleships of a wave
2. click "new wave"
3. use map pieces

Detailed error description (What you see):
The progress in the map area disappeared and using new map pieces wouldn't do a thing. this appears only after calling a new wave. on zz14 I can still use it (because i didn't call a new wave?). In the screenshots below you can see that the ship (progress) in the map disappeared and after using 2 map pieces it still isn't back. In the additional spoiler at the end of this report you can see how it is on zz14 without calling a new wave.
How it should be:
The map progress shouldn't be reset and the map pieces should actually do something.
Screenshots:

Spoiler: how it is on zz14 (without calling a new wave)

 

[Arci]

Thanks, apparently here calling a new wave makes the ship on the left visually disappear, but as soon as you close and reopen the event window it reappears.

Also, it's just visual, as you can technically keep spending the maps and the progress is counted.