Deployable science stuck at not transmitting

[Fraktal]

I encountered this problem last night.

Couple months ago, I left a deployable goo canister on the Mun's Kerbin-facing side, powered and connected. Problem is, due to initially not having the entire DSN up, only the KSP, the Mun only had intermittent contact with Kerbin. The canister had gotten to the point where it displayed 100% collected but only 40-something% transmitted and it was off as well. So I launched a service mission that landed at the camp and flicked it back on. Went back home, checked in the Tracking Station...

...and it was off again.

So I reloaded the quicksave I made prior to returning to debug the issue. Flicked the goo canister on again, engaged timewarp - it turned off by itself after a while. Seems like as deployed science does its work in "ticks", if it detects during an update that it's already at 100% science collected, it automatically powers itself off... and since it's off, it probably won't transmit the last bit of collected data either despite having a real-time direct connection to the KSC at all times (I got the DSN up in the meantime), nor is there a way to manually transmit the data either unless I have a kerbal pick it up and put it back down, which transfers the data into the kerbal's inventory (and also resets science collected/sent to 0%).

End result is that once the canister hits 100% collected, it will never transmit anything ever again.

Is this a bug?

Edited March 21, 2022 by Fraktal

[Vanamonde]

Those are tricky parts to use. I think that's just how it works. Maybe place more relay satellites? 

[MechBFP]

On 3/21/2022 at 7:22 AM, Fraktal said:

End result is that once the canister hits 100% collected, it will never transmit anything ever again.

Easiest way to test is to put those experiments on a planet like Duna with no ability to contact the KSC, and timewarp till it is at 100%, and then get it connected and see if it ever transmits or not.

If that works, then get it to transmit once before it hits 100%, then disable the relay sat or whatever keeps it connected, and wait till it gets to 100% and try again and see if the behavior is different.

You may have also not time warped long enough, there may be some built in code to re-try a transmit every few days or something if there is any remaining science.

Also I am not sure, but those experiments may also be impacted by the science transmission penalties that occurs with all other experiments, so it is entirely possible they will always have science remaining that needs to be picked up and delivered to Kerbin manually just like any other experiment.

[surge]

A simple goo experiment huh? Your kerbal didnt happen to grab a sample from a nearby rocket while he was placing it, and return to Kerbin in the meantime?

Check the science centre - and your specific environment. If your kerbal  already brought back 100% of it, the remote experiment will just store it internally because theres no benefit in transmitting it.