Log4OM

I have a problem with downloading Grid data in the LOG4OM application. I have a paid subscription at QRZ.COM. It also has two LOG4ON instances, i.e. an installation version and a portable version. The problem is with the installation version. The problem is that after typing a character in the CALLSIGN field, the grid in the GRID field is not loaded. Only approximate value appears (and only 4 characters instead of 6). All data is downloaded, including the photo, but not GRID. This problem does not occur on the LOG4OM portable version on the same computer. I've done everything, formatted Windows, did a clean install, but the problem persists.
Please help!
Piotr

I know, I know, I already know!
I solved this problem. It turned out that version 2_26 has this bug that grid is not loaded. When I installed the previous version 2_25 grid downloads correctly every time and this problem does not occurs.