H264 SPS declared Framerate decoded incorrectly?

Hello,
I have been working with Stream Eye for some time. I have an H264 stream with different frame rates declared within it. It decodes some of them correctly and others in correctly within the same stream. When I decode the SPS by hand it seems to that all the frame rates are correct. I think there might be a bug in the system that is adding or deleting bits when decoding the header. I see from the H264 specification that the num_units_in_tick and time_scale values are supposed to be 32bits each. But for some reason, the time_scale will occasionally shift and grab the bit intended for fixed_frame_rate_flag and trailing_bits.

I would like to up load a screen shot or imagery file for you see the headers, but I can't figure on how to do that.

Here is some text:
A good decode of the frame rate looks like this:
SPS header in hex: 00 00 00 01 67 42 80 28 f4 05 a1 e9 28 40 00 7d 00 00 04 e2 00 21
and then the Headers info shows with proper flags set and 5 as the framerate declared.
[00]seq_parameter_set_rbsp() {
profile_idc = 66 (Baseline)
constraint_set0_flag = 1 (true)
constraint_set1_flag = 0 (false)
constraint_set2_flag = 0 (false)
constraint_set3_flag = 0 (false)
reserved_zero_4bits = 0 (false)
level_idc = 40
seq_parameter_set_id = 0
if (profile_idc == 100 || profile_idc == 110 || profile_idc == 122 || profile_idc == 144) {
log2_max_frame_num_minus4 = 0 (4)
pic_order_cnt_type = 0
if (pic_order_cnt_type == 0)
else if (pic_order_cnt_type == 1) {
num_ref_frames = 1
gaps_in_frame_num_value_allowed_flag = 0
pic_width_in_mbs_minus1 = 44 (720)
pic_height_in_map_units_minus1 = 29 (480)
frame_mbs_only_flag = 1
if (!frame_mbs_only_flag)
direct_8x8_inference_flag = 0 (false)
frame_cropping_flag = 0 (false)
if (frame_cropping_flag) {
vui_parameters_present_flag = 1 (true)
if (vui_parameters_present_flag)
vui_parameters() {
aspect_ratio_info_present_flag = 0 (false)
if (aspect_ratio_info_present_flag) {
overscan_info_present_flag = 0 (false)
if (overscan_info_present_flag)
video_signal_type_present_flag = 1 (true)
if (video_signal_type_present_flag) {
video_format = 2
video_full_range_flag = 0 (false)
colour_description_present_flag = 0 (false)
if (colour_description_present_flag) {
}
chroma_location_info_present_flag = 0 (false)
if (chroma_loc_info_present_flag) {
timing_info_present_flag = 1 (true)
if (timing_info_present_flag) {
num_units_in_tick = 128000
time_scale = 1280000
fixed_frame_rate_flag = 1
}
nal_hrd_parameters_present_flag = 0 (false)
if (nal_hrd_parameters_present_flag)
vcl_hrd_parameters_present_flag = 0 (false)
if (vcl_hrd_parameters_present_flag)
if (nal_hrd_parameters_present_flag || vcl_hrd_parameters_present_flag)
pic_struct_present_flag = 0 (false)
bitstream_restriction_flag = 0 (false)
if (bitstream_restriction_flag) {
}
}
}
[00]pic_parameter_set_rbsp() {
[00]slice_header() {
[00]sei() { = 35

The very next frame has should have a declared rate of 4fps
SPS header in hex: 00 00 00 01 67 42 80 28 f4 05 a1 e9 28 40 00 7d 00 00 03 e8 00 21
The Headers Info displays this and states that the declared frame rate is 237.569
[00]seq_parameter_set_rbsp() {
profile_idc = 66 (Baseline)
constraint_set0_flag = 1 (true)
constraint_set1_flag = 0 (false)
constraint_set2_flag = 0 (false)
constraint_set3_flag = 0 (false)
reserved_zero_4bits = 0 (false)
level_idc = 40
seq_parameter_set_id = 0
if (profile_idc == 100 || profile_idc == 110 || profile_idc == 122 || profile_idc == 144) {
log2_max_frame_num_minus4 = 0 (4)
pic_order_cnt_type = 0
if (pic_order_cnt_type == 0)
else if (pic_order_cnt_type == 1) {
num_ref_frames = 1
gaps_in_frame_num_value_allowed_flag = 0
pic_width_in_mbs_minus1 = 44 (720)
pic_height_in_map_units_minus1 = 29 (480)
frame_mbs_only_flag = 1
if (!frame_mbs_only_flag)
direct_8x8_inference_flag = 0 (false)
frame_cropping_flag = 0 (false)
if (frame_cropping_flag) {
vui_parameters_present_flag = 1 (true)
if (vui_parameters_present_flag)
vui_parameters() {
aspect_ratio_info_present_flag = 0 (false)
if (aspect_ratio_info_present_flag) {
overscan_info_present_flag = 0 (false)
if (overscan_info_present_flag)
video_signal_type_present_flag = 1 (true)
if (video_signal_type_present_flag) {
video_format = 2
video_full_range_flag = 0 (false)
colour_description_present_flag = 0 (false)
if (colour_description_present_flag) {
}
chroma_location_info_present_flag = 0 (false)
if (chroma_loc_info_present_flag) {
timing_info_present_flag = 1 (true)
if (timing_info_present_flag) {
num_units_in_tick = 128000
time_scale = 60817540
fixed_frame_rate_flag = 0
}
nal_hrd_parameters_present_flag = 0 (false)
if (nal_hrd_parameters_present_flag)
vcl_hrd_parameters_present_flag = 0 (false)
if (vcl_hrd_parameters_present_flag)
if (nal_hrd_parameters_present_flag || vcl_hrd_parameters_present_flag)
pic_struct_present_flag = 0 (false)
bitstream_restriction_flag = 0 (false)
if (bitstream_restriction_flag) {
}
}
}
[00]pic_parameter_set_rbsp() {
[00]slice_header() {
[00]sei() { = 35

Is there some limitation as to how many times it can change frame rates? Or is this an error within Stream Eye?

thanks for you prompt reply. I am going to look for another decoder too to verify what I am seeing.

Brandy