What are your recording settings (bitrate, quality, presets, etc) and what file format are you using? You might have to wait for the file to be fully written. You might be able to try Streamlabs OBS, they also have a dedicated discord just for streamlabs obs (SLOBS) with support. I do not regret switching from obs to SLOBS. It even made my videos look better.
I would recommend going with AM4, simply because you'll be able to upgrade in the future up to 16 cores (if the motherboard can also handle it)
You can start with something as low as 200ge (dual core with integrated graphics) and as you have money and processor prices go down, you can upgrade all the way to Ryzen 3rd generation or whatever will show up.
I'm not gonna suggest it though, because the difference between 200ge and Ryzen 1200 is just around 1000 INR, so you get 2 more cores but no integrated graphics for a few dollars more - you can get a video card from eBay for 5-10$ so there's no point going for 200ge unless you get it from eBay for around 40$.
someone above suggested A320 boards - yes, some are cheap and they'll work with Ryzen 1200, but the chances of you being able to upgrade to Ryzen 3rd gen in the future would be iffy at best... best to spend a few dollars more to go with a B450 board.
I suggest the one below, because it has some heatsinks on the VRM so it will work even with 8 or 12 core processors (if you won't overclock them) and if your budget is tight, you can start with 2x4 GB sticks and add a couple more sticks when you have more money.
You can replace the 2 x 1392 INR 4 GB sticks below, with 2 x 8 GB sticks for ~ 2400 INR extra (2 x 2600 - 2 x 1392 = 2416 INR).. see the suggestion above.
PCPartPicker Part List
Type
Item
Price
CPU
AMD Ryzen 3 1200 3.1 GHz Quad-Core Processor
₹5200.00 @ Amazon India
Motherboard
Gigabyte B450M DS3H Micro ATX AM4 Motherboard
₹6425.00 @ Amazon India
Memory
Crucial 4 GB (1 x 4 GB) DDR4-2400 Memory
₹1392.00 @ Amazon India
Memory
Crucial 4 GB (1 x 4 GB) DDR4-2400 Memory
₹1392.00 @ Amazon India
Prices include shipping, taxes, rebates, and discounts
Total
₹14409.00
Generated by PCPartPicker 2019-09-15 00:42 IST+0530