My app is overlapping rows if two entries are made within a short period of time

[Excelsoxls]

This started happening recently. Some users have reported that some entries were missing from the table, so I did some tests and I verified that if two users sync data at the same time the last to sync overlaps the previous entry instead of creating a new row.

Some info that might be useful:

- My table is stored in an Excel sheet on OneDrive;

- My table is literally that (it's formatted as a table);

- The table currently has 74k rows (there's the whole last year data and this years's).

Any input as to why this may be happening is really appreciated.