My account is in a weird situation. I only have long positions but my Available to Short is almost -$200,000,000. I also have -$20,000 Available to Buy, but over $120,000 in cash. The effect this has is that I can't buy anything; I get an "insufficient margin" error message despite having plenty of cash available (the limit orders I'm placing are well within my cash constraints). Can someone explain what's going on?
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