I took the ICE yesterday with a connection to a regional train. The ICE was about 10 minutes late and I thought I'd missed the connection, but they held up the regional train so that all the connecting pax could make it.
But then the regional train with the destination Strasbourg announced that the final stop in Strasbourg was cancelled. I guess it was because of the strike in France, but there are no French employees on the train. I noticed that some trains went all the way to Strasbourg that day, but not mine. Someone asked a DB agent if there was a refund, but he said no. We could take the tram from Kehl for €1.80.