Anyone seeing this entry in MC logs(TC75): Failed to find mounted volume for /storage/sdcard1/
Do you have any Packages or File Sync rules targeting that specific directory? The TC75 might just have /storage/sdcard0 unless you've installed a physical SD card as well.
Thanks for answering. When troubleshooting via ADB it seems that some applications are testing initially if an SD-card is mounted, despite not actually writing anything to it.
The error disappeared the minute we inserted a storage card.