Maybe this exists and I didn't see it? Maybe the new beta has it? I haven't much tried that yet, I'm sorry to say.
If not, please consider adding it - either in the or (also) in the classic Tinkercad:
add a setting where I can tell Tinkercad that I will NEVER "use midpoint" to measure things. I realize others will need it, but for me, this wastes too much time trying to figure out why nothing fits together - sometimes hours later so I have to scrap the whole project.
I don't know why or how, but all too often I accidently trigger the setting, and without noticing it (it is, after all, usually a change of perhaps 1 or 2mm I'm talking about) everything is skewed. It's bad enough all the numbers overlap...