Error occured in upload with SeaDrive

[sysoppl]

Sometimes, when I paste a folder with multiple files, SeaDrive cannot upload files. It then shows notifications every few seconds with error message.

[07/21/22 14:21:45] Repo 'XXX' sync state transition from 'synchronized' to 'uploading'.
[07/21/22 14:21:45] Upload with HTTP sync protocol version 2.
[07/21/22 14:21:45] Transfer repo 'c73fecae': ('normal', 'init') --> ('normal', 'check')
[07/21/22 14:21:45] Transfer repo 'c73fecae': ('normal', 'check') --> ('normal', 'commit')
[07/21/22 14:21:45] Transfer repo 'c73fecae': ('normal', 'commit') --> ('normal', 'fs')
[07/21/22 14:21:45] Transfer repo 'c73fecae': ('normal', 'fs') --> ('normal', 'data')
[07/21/22 14:21:45] [07/21/22 14:21:45] libcurl failed to POST https://XXX/seafhttp/repo/c73fecae-6dfa-4ca5-bc3b-5ec49694294c/check-blocks/: Failure when receiving data from the peer.
libcurl failed to POST https://XXX/seafhttp/repo/c73fecae-6dfa-4ca5-bc3b-5ec49694294c/check-blocks/: Failure when receiving data from the peer.
[07/21/22 14:21:45] Failed to get needed block list for file folder/folder/xxx.txt
[07/21/22 14:21:45] Failed to get needed block list for file folder/folder/folder/xxx.txt
[07/21/22 14:21:45] Transfer repo 'c73fecae': ('normal', 'data') --> ('error', 'finished')
[07/21/22 14:21:45] Repo 'XXX' sync state transition from uploading to 'error': 'Error occured in upload.'.

[killing]

This should be some network issues. Something in between the server and the client interrupts the connection.

[sysoppl]

This occurs only after uploading thousands of (small) files at once via seaDrive. Same thing via browser and there was absolutely no errors. After reinstalling seafile this error is gone, and I'm just not uploading these files again (sadly)