These few days I also occasionally got the same problem but not as frequently as you
I have watched the complete ad, and then upon closing it, the game just freezes and does not recognise that I have completed the ad
It just forces me to reload the game
It is less annoying when it happens during the "watch to spin" event
But it is very annoying when it happens during the login daily streak or free teamplay drill because once the game is reloaded the rewards are no longer available
Nordeus earns money when we players watch the ads and if we players cannot get the stated rewards after watching the ads, that means Nordeus is a SCAM, and Nordeus is committing a CRIMINAL OFFENCE
They better fix it soon