PX4 SITL failing to connect to gazebo for boat model/world

[altmattr]

Describe the bug

make px4_sitl gazebo is working for most possible worlds and models that I try. However, for make px4_sitl gazebo_boat it hangs at

INFO  [dataman] data manager file './dataman' size is 7866640 bytes
PX4 SIM HOST: localhost
INFO  [simulator_mavlink] Waiting for simulator to accept connection on TCP port 4560

I'm running in WSL on windows 10

To Reproduce

Steps to reproduce the behavior - in WSL command prompt:

1. > git clone https://github.com/PX4/PX4-Autopilot.git --recursive
2. > ./PX4-Autopilot/Tools/setup/ubuntu.sh
3. > HEADLESS=1 make px4_sitl gazebo_boat
4. See error

Expected behavior

Expected PX4 SITL start up to continue.

Additional context

I've tried verbose logging of gzserver but no clues. I've tried all other gazebo worlds and models and they all work, including uuv_hippocampus.

[altmattr]

I have tested on ubuntu running direct on hardware as well - same behaviour

[altmattr]

Bug does not exist in v1.13.0. If I checkout that branch and follow the same steps, the boat simulation works.

[altmattr]

bug does occur on tag pr-rover-ratesp

[Jaeyoung-Lim]

@altmattr This was fixed in PX4/PX4-SITL_gazebo-classic#917