I have been having similar issues the past week. Wasn’t sure if there was an update but have noticed my l40 skipping rugs entirely, getting lost more often, not doing entire rooms and the live camera function has become unusable due to lag.

Following...  
I have automatic updates shut off.
I've been wondering about the new version recently offered to me, but seeing these problems,  I'll wait.

Hi,

Please try the following troubleshooting.

1. It may be caused by obstacles on the cleaning path (e.g. room door closed/forbidden area or virtual wall on the cleaning path, etc.);
It is recommended that you confirm that there are no obstacles on the cleaning path, restart the robot, and start the task again.

2. Make sure there are no mirror reflectors (such as mirrors, windows, etc.) to avoid affecting the navigation of the machine.

3. Please confirm whether the LDS laser sensor on the top rotates and works normally when the robot starts working.

4. Please check whether the driving wheel is slipping, stuck, or trapped.

If the issue remains unresolved after completing the above steps, please contact support.na@dreame.tech for further investigation and assistance.
Also, kindly provide a video of the problem to help with diagnosis.