Sim locks up when performing DTO

[falcon71]

When performing a direct to, the sim locks up for a second or two:
https://www.youtube.com/watch?v=6JsuY3izYm8
It doesn't happen every time, but about 75% of the time. The sim is FS2024 and he uses Navigraph navdata.

[falcon71]

Additional information:

Just to add some details - I am also seeing this lockup behavior when switching from LEG to OBS mode, and occasionally while the GPS is transitioning from one waypoint to the next with no interaction from me.

The user also wrote:

Alright, ran a few more test on my last flight (A2A Aerostar). I was able to create the lockup performing a DTO on the ground. I did a fresh download and install of the KLN90 prior to. I loaded a flightplan with a good number of waypoints, and did some experimenting on the way, using GPS nav and autopilot.
Waypoints would transition smoothly, until I did a DTO (lockup).
AFter the first lockup, waypoint transitions resulted in the short lockup.
I have the PMS50 GTN750, but will remove that entirely before the next flight and see if that helps - nope, same result.
I also have no idea at all what waypoint was used in the video, but I can have that happen just about anywhere.

[sadbucketz]

Please fix this 🫠

[falcon71]

@sadbucketz I just tried it again and I'm still unable to reproduce this issue. I assume you are C-FJDH from Discord? If so, then you are the only person so far, who has reported this issue. I suspect, the problem might be somewhere on your end. Can you please try again with a completely empty community folder, except for the Comanche and the KLN?

[sadbucketz]

I am not C-FJDH from discord. I get consistent sim freezes when a new leg activates usually on approach, using direct to and from LEG to OBS mode. I also have 5 other friends who regularly experience this on black square and A2A aircraft. I assumed it was a well known issue being worked on so I never posted till now. Everyone I have seen using it on the msfs discord and other servers agreed that they regularly experience it and have just been dealing with the short (1-5 second) freezes.

[falcon71]

@sadbucketz Oh, that's interesting. So far I was only aware of a single user on Discord. I did not know the issue was so widespread. Can you please try my suggestion with the empty community folder and see if this makes a difference?
As I mentioned, so far I have not been able to reproduce the issue. Could you please create a step-by-step guide, so I can see if I can reproduce it on my end?

[falcon71]

@sadbucketz Please try this version and let me know if it fixes freezing issue for you:

falcon71-kln90b.zip

[sadbucketz]

Thank you! I will try it out when I get home in about an hour.

[falcon71]

@sadbucketz I was able to find a nasty bug in the DTO code. It only happened when performing a DTO to a waypoint that is in the flight plan. The issue is now fixed properly in the latest beta version:
https://github.com/falcon71/kln90b/releases/tag/v2.1-b1
I would be very grateful, if you could let me know if you still have freezing issues with this version. If everything is fine, then I will release this as the next full version in a few days.

[sadbucketz]

@sadbucketz I was able to find a nasty bug in the DTO code. It only happened when performing a DTO to a waypoint that is in the flight plan. The issue is now fixed properly in the latest beta version: https://github.com/falcon71/kln90b/releases/tag/v2.1-b1 I would be very grateful, if you could let me know if you still have freezing issues with this version. If everything is fine, then I will release this as the next full version in a few days.

Hi sorry I didn't get back to you. I tested it out, but found the CDI indications were inverted on the HSI of the A2A Aerostar... this was after I accidentally crashed the unit by hitting direct to in OBS mode... I don't believe it was doing that before the crash. I unfortunately ran out of time to test it after that. Will try again today.

*another note: is there no way to send the cdi indications to the HSI in OBS mode?

[sadbucketz]

Quick update. I got this crash when going from one leg to another https://imgur.com/a/t8QDcmT

I I hit "suppress further errors" and the to/from indications and cdi indications became inverted afterwards. I was unable to correct this without restarting the flight. This happened on first leg change and no legs would activate in sequence after the error...

[falcon71]

Hi sorry I didn't get back to you. I tested it out, but found the CDI indications were inverted on the HSI of the A2A Aerostar... this was after I accidentally crashed the unit by hitting direct to in OBS mode... I don't believe it was doing that before the crash. I unfortunately ran out of time to test it after that. Will try again today.

Ok, I will try a DTO in OBS mode and see if I can reproduce your issue. Also weird that the CDI would be inverted, I will try this as well.

*another note: is there no way to send the cdi indications to the HSI in OBS mode?

The HSI should also work in OBS mode. Did you switch the HSI from VOR to GPS?

Quick update. I got this crash when going from one leg to another https://imgur.com/a/t8QDcmT

I I hit "suppress further errors" and the to/from indications and cdi indications became inverted afterwards. I was unable to correct this without restarting the flight. This happened on first leg change and no legs would activate in sequence after the error...

Thanks for the screenshot. I will test if I can reproduce it.

[sadbucketz]

Is there another folder location I can wipe fully uninstall the gps. I noticed after deleting and installing a new versions my flight plans save. I was just wondering if there was possibility something lingering outside of deleting the community folder file that may be causing me these issues.

[falcon71]

The sim is sandboxed and it is impossible to write to any file with JS code. The flight plans are stored somewhere in the cloud and cannot be deleted. The error handling for flight plan deserialization is quite robust, I don't think those are the problem.