There is. For example there will be a scene where Subaru declares something like "Not to Emilia, not to Beatrice, not to anyone else could he show it. The only person could a Subaru who needed to be strong show his weakness to was Rem." As far as I know he still declares this in the LN. Emilia's addition to this scene directly contradicts Subaru's declaration. I'm going to guess that the chapter here is a mistranslation as Subaru is supposed to be glad that Emilia is there, not have her, as thats what it like in the LN. In the WN Subaru at this scene Subaru feels the opposite. He does not want Emilia to see him in this state, he is hurt. He is at his weakest point. But instead he's glad to see Emilia and is willing to cry in front of her. This ruins Subaru's character arc for the entire Arc as Subaru is supposed to try to shoulder every burden by himself which will break him. Subaru is supposed to refuse to rely on anyone else at this stage. Him trying to accomplish the trials himself, him giving Otto the cold shoulder, him unable to trust anyone else. He will learn that he will have to rely on other people, that's his character arc as simple as it could be. Him crying infront of Emilia contradicts this.There is absolutely nothing wrong with scene for anyone with function brain and gives shit Re:Zero beyond stupid petty shit.
“…You really are something, Emilia-tan.”
“Really? I feel like you’re reeeally amazing, too, Subaru.”
LN Vol 5
“Rem… You’re really something else.”
“I am. But Sister is even more incredible.”
WN Arc 4 Chapter 73 and LN Vol 12
Subaru: “God you're amazing, Rem...”
Rem: “I appreciate that very much. You're incredible too, Subaru-kun.”
I'll let a quote from the WN do the talking.More emotional than the WN
Different from with the White Whale's FOG, Rem's body is right there, but nobody remembers her. And there is Subaru, at her side, dumbstruck and unable to do anything. This pathetic, hopeless hour ends here. He will end it here. Subaru takes Rem's hand, resolving himself. This time, definitely, he resolves himself.
—I, no matter what, am going to,
Subaru: “—Bring you back, Rem. No matter what, I'll bring you back.”
Subaru had told her. That he'd show her, show her the man she loved, become the ultimate hero.
So, would he not still be midway through his course?
Subaru: “I'm, no matter what... Your hero will, no matter what, come to get you. —Be waiting for me.”
He raises his head. Bares his teeth. Pronounces war on the enemy. He will make them regret touching what shouldn't be touched, encroaching on what shouldn't be encroached.
And it'd be no man other than Natsuki Subaru.
Subaru: “No matter what. —No matter what!!”
He couldn't bear his memories of his days starting from zero being ones without her.
No matter what, bring it back.
Bring back the days he lost, the hours they lived together, the hours they would live together.
Once again, his hands would reel everything back in, unfailingly.
That is more on Kadokawa not owning the WN. As Tappei did not give them the rights to it. If they had they would have it taken down as what happened to many other WNs adapted into LNs. I am thankful for Tappei to hold onto the WN as his original vision is preserved. I'd like to remind you that the WN is the only reason that Re:Zero got popular, as it IS Re:Zero.That is why this manga (and anime) is based in the LIGHT NOVEL, not the annoying WN.