Synchronizing of onedrive files in adobe reader for android

Hello,

My problem is that I began correcting/commenting a pdf on my phone.

But the file which is saving on my onedrive cloud, doesn't synchronize at all.

I linked adobe and my onedrive account already.

I can only find the "save a copy" option, but it means creating/uploading a new copy every time I make only a few changes, which is extremely cumbersome. I wish to save the change instantaneously like it is standard for files saved on a cloud. Did I miss something in the options?