Not cleaning well after update

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Hi.
I bought this robot from Amazon. On the first usesit was cleaning fine. But after installing some update, the robot stopped cleaning close to the walls. It zigzags instead of following parallel to the wall to clean alongside it. We can even see on the lines drawn on the map.

It's also not cleaning corners, as the brush never goes there, even though it can because it extends. I know that a round brush mop wont clean completely a corner, but it is not even trying.

I have the same problem

Hello, you can wipe the edge sensor on the right side of the robot with a soft dry cloth. And make sure the edge sensor is not blocked by any obstacles/objects. Then try to check whether the robot can clean the edge normally.

Please go to "Settings > AI-driven mop expansion" and set the frequency to "High frequency" mode to see if this can improve the situation.

I already did that, but it didn't fix the situation. Can I send you a video? I took a screenshot of the video. Look at the mopping pattern

I tried another thing, deleted the map and remapped the house. Now, that dude of the corridor got mopped right, but not the other side, as you can see on the photo I took.
It's it possible to revert the firmware?

Tried to mop again and got the strange behavior again on the first side of the corridor.

Have you got collision avoidance mode turned on? If so try turning it off and it should go closer to the skirting.

Also make sure mop extend mode is on so it extends the mop.

. I tried with collision on and off and had the same results. And the mop extend is on.
I received a notification about a new firmware update. Later on I will install and test it again.

Well, the update didn't fix the situation.
I am thinking going back to Xiaomi robots.