What are the new problems you are having?
They always fail. I have one out of 12 that’s been going for months. I think they need to work on the valves.
Well I only have 2,000 miles experience, but no failure so far from 2 tubes.
Which brand are you? I know RideNow upgraded their valves some time ago.
~ 600 km on Tubolito's (over serveral months) and no visitations. ( - yet)
I've stuck to tried and tested Butyl tubes for the new Winter bike though.
I can't be arsed with tubeless; scraping dried sealant off rims sounds tedious. If I was riding gravel or mountain biking, it would make more sense.
Quick update - I've now done about 3,000 miles on my TPU tubes and still only the one puncture - which was due to a metal spike through the tyre. Very satisfied so far. ......... I know that is a dangerous thing to say
RideNow (pic above)