(Robo)fish spawn rate gone down

[Gunner6011]

Was aiding my clanner with Recovered fishing mission in Orb Vallis and discovered that robofish spawn rates droped drastically from when (last week I think) I did it - you can see only 1, max 2 fishes instead of 4-5 swimming around and if they are catched there is a 15-20 second delay until next spawn.