This wreaks havoc with my automations. I usually backup before an update, but this was just from 2026.5.2 to 2026.5.3, so I didn't bother - and they don't usually make big changes in smaller updates!
What would you do? Restore from backup 18 hours ago or wait and see what happens?
EDIT: I'm not using ZHA, but Zigbee2MQTT.
My company has paid for having a video made. I've uploaded it to our Vimeo account, under the condition that the producer is credited. But in the video settings, it looks like this:
"Credits can only be added by the video owner" - I am the video owner!
This is a company account, and many of my colleagues are on it, too, but we can't log in as the company - we always log in as ourselves. How can I set credits on this video?
Mit firma er ved at blive overtaget af et andet. I den forbindelse forhandler jeg ny kontrakt. Jeg vil gerne have mine rettigheder med, i henhold til lov om virksomhedsoverdragelse, men nu siger min nye arbejdsgiver, at det ikke er en "rigtig" virksomhedsoverdragelse. Kan de bare sige det, og så er det sådan, det er?
I recently launched the same rocket six times on two different motors, and the maximum altitude attained was in each case significantly lower than the apogee altitude predicted by OpenRocket. Since I don't suppose there's a systematic problem in OpenRocket, and since I believe I've taken great care to make sure that the model in OpenRocket corresponded carefully to the real rocket, I'm quite curious as to how such a large discrepancy can arise.
The .ork file can be downloaded from https://drive.google.com/file/d/1BbnzKHK93tPlJpeIp_0TcVA5QuByW68s/view?usp=sharing
The rocket is the kit "Europa" from Raketenmodellbau Klima, modified for 29 mm motors. The rocket has an outer diameter of 75 mm and weighs 527 g without payload. Since the construction in OpenRocket gives a mass of 517.25 g, I've added a mass component of 9.75 g in the rocket's center of gravity to bring the mass up to what it actually is.
In the top of the rocket is placed a payload with a mass of 223 g, bringing the total rocket mass with payload to 750 g.
I have configured two motors, a Piotr Tendera TSP F35-4 and an Aerotech Enerjet F25W-4.
According to the weather report, and in accordance with my own weather station, the winds were 4 m/s from 315 degrees, with a standard deviation of 1 m/s, which I have entered into the simulations' launch conditions.
The rocket was launched four times with the Aerojet motor, and twice with the TSP.
OpenRocket predicts an apogee altitude with the TSP motor of 188 m, and an apogee of 216 m with the Aerojet motor.
This is off by around a factor of two. According to a thoroughly calibrated air pressure sensor inside the payload, the maximum altitude attained was 127 m, and frequently lower.
When I export easting and northing from OpenRocket and convert that to a kml file, it looks like the rocket goes vertically up and down, landing few meters from the launch pad. This in absolutely no way corresponds to how the rocket flew in real life, it started turning the moment it left the 1 m long (and very rigid) launch rail, seemingly traversing a longer downrange than vertical distance.
SO - where's the culprit?
Was the wind really much, much stronger than reported by the meteorological service, measured by my own weather station and my subjective experience?
If that is the case, I tried to increase the wind speed in OpenRocket - not even hurricane force winds can get the apogee down to what I measured!
The velocity off rod is in both cases close to 10.5 m/s. This isn't flagged as a low velocity by OpenRocket, but is this in reality too low?
