Hello friends, long time no see

I'm working on a new client's 2019 return. (Yes, they're just now starting their 2019 return.) Their prior tax prep (for 2018) was H&R Block.

They had a new vehicle in 2018, and they're doing actual rather than standard. The vehicle cost was $28,838. H&R gave them an SDA of $18,000. When I enter that, I get the error "Line 33i is too large. It cannot exceed 50% of eligible basis."

Now, whether that is correct or not, that is the depreciation that they took in 2018. I can't say they only took $14k, if they took $18k. If they need to do an amendment for 2018, we can do that, but in the mean time, they took $18k in 2018. I should be able to enter that they took that amount. But it won't let me override the error. Any ideas?

TIA,