Not stalled. Just allowing for motions and appeals to be filed which is part of due process.
Don’t worry. With a conviction rate north of 90%, these cases are not going anywhere. 
Stalled or not, let the chips fall where they may. No hurry. What matters is the truth... Take your time, do it right. And I say this about any investigation, trial. Hunter Biden? If he is guilty of violating laws, prosecute to the fullest extent of the law. If Joe Biden is guilty of violating laws, prosecute to the fullest extent of the law. If Trump is guilty of violating laws, prosecute to the fullest extent of the law. I don't personally know any of them.. could care less what happens to them, I am interested in truth, justice and the American way.. at least the American way I grew up with. I'm American first, independent second.