Hi Gang,

Thanks for your reply.
I just updated AFNI and it seems to work. However, it prompts with the following warning (after ****) after Slice 15.
Any suggestion?

Thanks in advance.
Phoebe.

*****
Loading required package: lme4
Loading required package: Matrix

Range of input data: [-0.053, 1.651]

If the program hangs here for more than, for example, half an hour,
kill the process because the model specification or something else
is likely inappropriate.

[1] "Great, test run passed at voxel (85, 130, 81)!"
[1] "Start to compute 151 slices along Z axis. You can monitor the progress"
[1] "and estimate the total run time as shown below."
[1] "07/14/20 19:24:08.224"
Z slice # 1 done: 07/14/20 19:24:08.676
Z slice # 2 done: 07/14/20 19:24:08.911
Z slice # 3 done: 07/14/20 19:24:09.137
Z slice # 4 done: 07/14/20 19:24:09.364
Z slice # 5 done: 07/14/20 19:24:09.595
Z slice # 6 done: 07/14/20 19:24:09.834
Z slice # 7 done: 07/14/20 19:24:10.063
Z slice # 8 done: 07/14/20 19:24:10.303
Z slice # 9 done: 07/14/20 19:24:10.532
Z slice # 10 done: 07/14/20 19:24:11.298
Z slice # 11 done: 07/14/20 19:24:12.572
boundary (singular) fit: see ?isSingular
Z slice # 12 done: 07/14/20 19:24:14.297
boundary (singular) fit: see ?isSingular
boundary (singular) fit: see ?isSingular
boundary (singular) fit: see ?isSingular
Z slice # 13 done: 07/14/20 19:24:16.326
boundary (singular) fit: see ?isSingular
boundary (singular) fit: see ?isSingular
boundary (singular) fit: see ?isSingular
boundary (singular) fit: see ?isSingular
Z slice # 14 done: 07/14/20 19:24:19.159
boundary (singular) fit: see ?isSingular
boundary (singular) fit: see ?isSingular
boundary (singular) fit: see ?isSingular
boundary (singular) fit: see ?isSingular
boundary (singular) fit: see ?isSingular
Z slice # 15 done: 07/14/20 19:24:23.239
boundary (singular) fit: see ?isSingular