[RTTY] LoTW rejecting RTTY QSOs as invalid mode

[CQDX20 at aol.com]

Has anyone had a problem with LoTW rejecting RTTY QSOs as invalid mode  
when creating the .tq8 file?  Not all RTTY QSOs are being identified  as 
invalid but a significant number are.  I have checked QSO lines in the  .adi files 
being used and those QSOs being rejected are identical in format  and 
spacing to those being accepted.  I am in the process of uploading  95,000 QSOs 
and do not want to get too far down the road with this  problem.  All my CW, 
SSB, AM, etc. QSOs have converted to .tq8 files with  no errors so far.
 
By the way for IOTA chasers, I just uploaded to LoTW over 1,100 QSOs from  
my 1974-76 operation on Shemya Island, IOTA NA-037, as KL7ICL/KL7.
 
Thanks,
 
Paul - K4FPF