standby bootflash showing full even when it's not

Hi, I was wondering if anyone stumbled across this before. I am trying to update the release on an ASR907, I can copy the image just fine on the active RSP bootflash but, when I try to copy it on the standby, I get an error that there's not enough space free.

Directory of stby-bootflash:/ 11 drwx 16384 Sep 5 2017 18:56:15 +02:00 lost+found 245281 drwx 4096 Nov 5 2019 11:20:13 +01:00 .prst_sync 654081 drwx 26537984 Nov 6 2019 11:57:53 +01:00 tracelogs 12 -rwx 1193 Sep 5 2017 18:57:17 +02:00 tracelogs.759 457857 drwx 4096 Sep 5 2017 19:06:38 +02:00 core 277985 drwx 4096 Sep 5 2017 19:07:45 +02:00 .rollback_timer 621377 drwx 4096 Dec 7 2017 12:01:58 +01:00 .installer 13 -rw- 18681 Dec 7 2017 11:45:11 +01:00 SYSMEM20171207.dat 14 -rwx 145860 Dec 7 2017 11:46:39 +01:00 smartdebug.tcl 261633 drwx 4096 Sep 5 2017 20:21:00 +02:00 Image 15 -rw- 484870554 Dec 7 2017 10:38:54 +01:00 asr900rsp3-universalk9_npe.16.06.02.SPA.bin 16 -rw- 26 Nov 5 2019 11:27:39 +01:00 check_fmc 17 -rw- 95 Feb 13 2019 14:44:53 +01:00 cpak_up.tcl 6185086976 bytes total (0 bytes free) 

So that should be around 500ish megs occupied out of 6gb total space but as you can see, it says there's no free space. Has anyone ever experienced this?