Moved a MODX Evo website to a new server, which went pretty smoothly with the standard instructions. However any user trying to access one of the directories under assets/files where all the reports etc are stored constantly got an Access Denied error.
This occurred when going into Elements > Manage Files
If you're looking closely, you can see the directory 'Test' in this image has been truncated to 'est'. Interesting.
Tracked the fault down to an extra slash in the File Manager path. Go into Tools > Configuration > File Manager and look at the first field, titled File Manager path, see pic.
I had to remove the slash between the [(base_path)] and assets, so the entry should read [(base_path)]assets/files