Have the same issue. but with a small twist.
Last week cannot upload the save to the cloud, then i have moved the minecraft from internal HDD to external HDD on the Xbox One X.
Swapped the internal HDD to an SSD and copy back all moved games/contents to internal SSD.
All 2 maps sync back minus 1 (my 5 year map) that has around 450Mb of used space.
Carlos Saraiva
Have the same issue. but with a small twist.
Last week cannot upload the save to the cloud, then i have moved the minecraft from internal HDD to external HDD on the Xbox One X.
Swapped the internal HDD to an SSD and copy back all moved games/contents to internal SSD.
All 2 maps sync back minus 1 (my 5 year map) that has around 450Mb of used space.