There’s no issue here. The maximum long quantity has been lowered to 0.1 due to control of exposure. I think you might find the text below for helpful:
Maximum trading quantities for both long and short positions are subject to immediate change, without prior notice. It can depend on multiple factors such as:
- Underlying market conditions - which include insufficient liquidity and unfavourable trading conditions.
- Control of exposure
If you see the following message while trading "The maximum trading quantity is “0”, the reason will be a restriction for maximum traded quantity, which applies for some instruments and it can be dynamically variable over time.
Last but not least, Brokers have maximum exposures that they mustn’t exceed due to regulations & capital requirement laws. We can’t just accept unlimited orders for unlimited amounts anytime we’d like, especially with stocks that are almost impossible to hedge.