Hey @Vitaliy_Zaripov. This isn’t a bug, it’s expected behavior on the Free (Hobby) plan.
On the free plan, there’s a limited monthly quota for Tab-completion. Once you hit the limit, suggestions stop showing up until the next billing cycle starts. The timing with Cursor 3 is most likely just a coincidence. From what we can see, Tab requests from your account haven’t been reaching the server for a while, which matches a used-up limit.
One important detail: Tab requests are sent automatically every time your cursor pauses while you’re typing, even if you don’t see or accept a suggestion. Because of that, the limit can run out much faster than it seems, sometimes in a single day of active coding. The dashboard only shows accepted completions, but the limit counts all server requests, so your usage can look low in the stats.