I'm having trouble synchronizing my mod with the cloud because of the project path that got too big.
On my Windows 7 I'm also having trouble making a simple copy of the project for the same reason.
As this will take a bit of work and I'm probably the only one who uses cloud instead of GitHub and Windows 7 instead of Windows 10, so I will understand perfectly if this suggestion is not taken up.
But my suggestion is to basically decrease the size of the file and folder names.
One of them is the folder "forge-1.15.1-30.0.42_mapped_snapshot_20190719-1.14.3-sources.jar_43a27aad64aec39fd59f38fc3e2ad63b" which has 97 characters (I know the hash is necessary).
Obs .: The version that caused these problems to me was forge-1.15.1-30.0.42.
Obs.: I'm Brazilian, I'm sorry for the translation flaws.