Upload issues on low-speed connection

[sashabrava]

Running upload script on low-speed Internet (around 1 Mbps upload speed limit) results with 5x higher traffic consumption (130MB for 28MB sequence). However, the problem doesn't appear when using 4G connection.

Sometimes uploading on slow connection ends up with such error:
"Failed to upload sequence at (foldername). Restart the script in order to finish you upload for this sequence.
Finished uploading"
Re-running upload script results with the same error, and the only way to fix it is to delete all files inside folder and leave only one picture and file "osc_sequence_id.txt". Then upload ends up successfully.

[ghost]

Works! Thank you for the solution.
Deleting the osc sequence id works fine!