The TIM itself places files into the data/out directories. Web-Server assisted script however will handle the file download and deletion. Hence, the files must be writable by the user of the web-server handling the TIM data/out files.
The mode 755 and owner apache:root will be applied recursive to all lower directories and existing files until these are deleted.
Log messages revealing the issue
[root@apm-docker out]# pwd
[root@apm-docker out]# ls -l
drwxr-xr-x 18 apache root 4096 Nov 16 10:02 autogen
drwxr-xr-x 2 apache root 6 Nov 16 10:02 btstats
drwxr-xr-x 18 apache root 4096 Nov 16 10:02 defects
drwxr-xr-x 2 apache root 503808 Feb 12 14:23 events
drwxr-xr-x 18 apache root 4096 Nov 16 10:02 recordings
drwxr-xr-x 2 apache root 4096 Feb 12 14:00 stats