Galaxy has some problems with importing play time from other platforms. A few weeks ago I posted a screenshot which shows this error after reconnecting the Steam plugin (https://www.gog.com/upload/forum/2020/08/0329ce7a050271bd7ff0a517e42369e20ef45c3b.jpg). Today the same thing happened with Epic. I disconnected the plugin and connected back again. The result is similar. What more the activities tab shows that I've spent for example 25 hours in a game 2 days ago, but it was a few months ago in reality. I presume this is related to the error with play time tracking. The app thinks that I've reached 25 hours two days ago and counts all this time into the last few days. It's the same when it comes to Steam plugin. When reconnecting it, some of the activities related to playtime are reset and show as achieved a few days ago and thus we get absurd play time in the last few days. I hope this will get fixed in the future because the error is quite annoying.