These barrels remain after the explosion, and if you shoot them after the detonation, nothing happens. As far as I remember, this issue didn't exist before the 25th anniversary update.
UPD: When I tried to reproduce this bug now, I loaded the c2a1 map, and the issue didn’t occur. This time, the barrels exploded as they should. I don’t know what this depends on.
These barrels remain after the explosion, and if you shoot them after the detonation, nothing happens. As far as I remember, this issue didn't exist before the 25th anniversary update.
UPD: When I tried to reproduce this bug now, I loaded the c2a1 map, and the issue didn’t occur. This time, the barrels exploded as they should. I don’t know what this depends on.