Netflix beats expectations on profit and subscribers

I am thinking of cancelling my membership, I have been having Netflix for over 10yrs and almost always watch S.Korean K Drama's and Japanese TV series, but some times films. How ever in the last week or so These drama's stop after about 20 mins, so I have to restart them. I have taken all the usual steps to eliminate various things on my computer, like getting rid of the the cache and browser memories..etc... but that has not worked, I use the same browser I have used for years, but again, I still have the problem. Strangely tho, it does not happen with USA shows or English language ones.