I have found some references to this problem buried in other threads (see posts by esaym here), but I don’t think there is a dedicated thread for it.
I have a Bullet R1 V2. After upgrading to 4.14.3 and FW 617, using Linux (Ubuntu 22.04), I started having the following problem:
- Preheat plots look fine
- Roasting plots start out looking normal, but after a few 10s of seconds the plot starts to extend to the left–blank space fills in the timeline before the curves start, pushing the curve timestamps to the right
- The curve continues to plot to the right and the axes extend to both the left and right
- Event timestamps are recorded at incorrect values, or at incorrect times rather, giving the impression that they happened at temperatures from an earlier time
See image below
I spent a long time trying to look into this via google/gemini and went down a rabbit hole about how Roastime changed the way it handles packets and Ubuntu for some reason drops a lot of them etc etc. I tried a number of fixes on the Ubuntu end, changing udev rules and a few other suggestions, but nothing helped. I was only able to fix the problem by downgrading to FW 615 and Roastime 4.13.6 and not allowing any updates. There was some suggestion to upgrade the FW to a beta branch, but I believe this is a one way street and I cannot ever downgrade after this so I am reluctant to go there.
Is this a known problem with a fix in the works? I can stay on the old software for now but this has made me wary of upgrading, especially if I end up upgrading the firmware and it cannot be undone.
Thanks!