Cannot play DVD iso anymore

[salsolo]

I just upgraded from UMS 1.5.0 to 1.5.1 as I had some serious audio sync issues. (Windows 2012 platform)
...but as a result I can no longer play iso files - I cannot see the content and this is what I see in the debug log.

DEBUG 2012-09-23 19:14:00.377 [Thread-21] libdvdread: Using libdvdcss version 1.2.10 for DVD access
DEBUG 2012-09-23 19:14:00.377 [Thread-21] *** Zero check failed in libdvdread4/ifo_read.c:571
DEBUG 2012-09-23 19:14:00.377 [Thread-21] for vmgi_mat->zero_3 = 0x00000000000000000000000000000000000002
DEBUG 2012-09-23 19:14:00.377 [Thread-21] *** Zero check failed in libdvdread4/ifo_read.c:572
DEBUG 2012-09-23 19:14:00.377 [Thread-21] for vmgi_mat->zero_4 = 0x00000000000000000000000000000000000004fb00000400
DEBUG 2012-09-23 19:14:00.377 [Thread-21] *** Zero check failed in libdvdread4/ifo_read.c:573
DEBUG 2012-09-23 19:14:00.377 [Thread-21] for vmgi_mat->zero_5 = 0x0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000600000001
DEBUG 2012-09-23 19:14:00.377 [Thread-21] *** Zero check failed in libdvdread4/ifo_read.c:574
DEBUG 2012-09-23 19:14:00.377 [Thread-21] for vmgi_mat->zero_6 = 0x0000000000000000000000000000000000000000000000005e00000000000000
DEBUG 2012-09-23 19:14:00.377 [Thread-21] *** Zero check failed in libdvdread4/ifo_read.c:577
DEBUG 2012-09-23 19:14:00.377 [Thread-21] for vmgi_mat->zero_9 = 0x0000000000000000000100000000000000
DEBUG 2012-09-23 19:14:00.377 [Thread-21]
DEBUG 2012-09-23 19:14:00.377 [Thread-21] *** libdvdread: CHECK_VALUE failed in libdvdread4/ifo_read.c:585 ***
DEBUG 2012-09-23 19:14:00.378 [Thread-21] *** for vmgi_mat->vmg_this_volume_nr <= vmgi_mat->vmg_nr_of_volumes ***

I have tried with PMS 1.70.1 to see if there was an issue with the iso'es but it works fine.

[SubJunk]

Thanks, salsolo, I think it will be fixed in 1.5.2