- Issue created by @Amer cloudy
- πΊπΈUnited States lisa.raeFrom the stackdump you included in your bug report, it appears that this is a bug with the drupal/flysystem_gcsmodule, which provides the adapter for Google Cloud Storage. That module is maintained by a different maintainer.I am moving this issue to that project. 
- π©πͺGermany skrug BambergThis is not a problem of flysystem but your filename. This contains an invalide character. It is pretty hard to see. The character after "2025-01/" is an invisible character of character code 8207 (https://www.codetable.net/decimal/8207) and therefore invalid. Be sure to sanitize your filename first before using flysystem. 
 You can spot this, when you copy the name into the chrome dev tools console. Two dots are appearing after the slash.So this is not a bug in flysystem I would say