Uh-oh :/ CVT booboo

[2024mirage]

17k km roughly on odometer now, yesterday was getting on the highway in ds CVT was not cold but was not too warm either around 30 celcius I put it in ds coming onto the highway on ramp, gradually and steadily accelerated then held throttle around 20 percent where I had previously never encountered anything, it suddenly began surging the rpm, up and down several several times. For around 30 seconds before I let off and put it into drive. It drove fine afterwards. I did notice also in the last few days and on the drive home last night, upon coasting with zero load essentially at certain speed, a clinking, like coins being dropped on the ground, like a ka-ting-ka-ting clank noises. In succession, and seems like on a certain rhythm.

Doesn't always do it, but sometimes upon acceleration there is the same clink, but only 1-2 times.