Hello Mr. Sir Claymore.
Im using v15 and still having the problem of the DAG file with 1050Ti in w10. Dont know if that is what you are refering
There are 2 distinct problems:
What Claymore warned is that in versions prior to 15.0 the maximum epoch DAG that the software supports is # 299 and ethereum is currently at # 297 so anyone with the outdated miner will stop working soon.
Your case is that your video card has 4GB, DAG is currently allocating 3.32 GB ... but the problem is that Windows 10 also allocates vram and there is no space left to allocate DAG.
One solution is to install older versions of the driver that allocate less vram as commented version 375.57 .. or use linux that doesn't allocate as much memory and there will still be some time left for your 4GB card by mining ethereum.