In the past, I upgraded LOTW once. I changed the grid format in LOTW to 6 digits, which is the same as JTDX. However, GT could not upload HRD. I tried many times, but it didn't work on the website, but it worked manually. Finally, I replaced GT with GT2, which was initially a modem. It showed an error at first, but HRD was already available on the website. Since then, everything has been working fine.
Someone said that LOTW cannot be uploaded, and neither automatic nor manual methods work. Therefore, I tried all the possible solutions, but none of them worked. Finally, I uninstalled and re-installed the previous version.
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