Average SAC Rate wrong since firmware update to 16.25

Same issue.  My SAC rate (imperial) is usually around .6 - average over most dives.  Now I am getting crazy readings like SAC 2.5 Average with 1.6 Maximum???  Interestingly the graphs appear to have the right data.  here is the latest example using Steel 100's tested at 3440, 3461psi start, 1205 ending.

Me too :(

Yep, new to the watch and diving and it had me freaking out until I did the math. Seems it's not using the final step of division by average depth. 

Yip mine is also out. I dive with both the mk2i and 3i and the 3i is way out. Garmin please fix asap.

I have exactly the same problem and would really appreciate it to be fixed so that I can compare my dives again. Luckily, during the dives itˋs showing up sac and atr correctly

I'm having the same issue as well after the update as well. Has anybody reached out to Garmin for a fix?

my guess is no. Nor it caught the attention of any of the moderators. So probably it will be best if somebody raises an official ticket with Garmin, so they can gather all the logs and fix the issue in the next update. I'd do it but unfortunately i have no recent dives...

Thank you Laurie. Happy to share logs

Laurie reached out to me to provide more info.

It seems like the watch isn't calculating the SAC correctly by taking the RMV and dividing it by the average depth (in bars)

From my last dive, the watch recorded 20.5L/min average SAC. I went ahead and did my own calculations which are as below;

Tank Size - 12.2L

Average Depth - 3.4m

Dive Time: 39mins 14secs

Tank Starting Pressure - 200bar

Tank Ending Pressure - 134bar

Volume Consumed - 66bars/805.2L **This is where there’s a slight discrepancy in the calculation, the watch calculates 798.5L volume used**

Take the Volume Consumed and divide by dive time to obtain RMV

805.2L divide by 39mins 14secs (39.23) = 20.53L/min (RMV)

Now to convert RMW to SAC- RMW divided by average depth (in bars)

20.53L/min divided by 1.34 bars (3.4m) = 15.32L/min (SAC)