It sounds like you may have income reported in Box 11 on Form W-2. That income is properly reported on Schedule 1, Line 8t. If you do not have income reported there, you may want to delete the W2 and re-enter it (by hand if previously you had imported it.)
What line of Schedule 1 are you seeing your W-2 on? Are you sure you are not talking about a W-2G for gambling? A W-2G would be on Schedule 1.
It's a normal W2. It's being put on Schedule 1, line 8t. That could make sense, however, in the past, it has always gone on 1040, line 1a.
It sounds like you may have income reported in Box 11 on Form W-2. That income is properly reported on Schedule 1, Line 8t. If you do not have income reported there, you may want to delete the W2 and re-enter it (by hand if previously you had imported it.)