TIMC pretty well has it.
When a Carbine is doing this, the "usual" is either a dirt-impacted bolt with the parts so gummed up or fouled it starts ejecting weakly or in odd directions, or the parts are simply worn out.
As above, the "fix" is to disassemble the bolt and either try cleaning it first, or just replace everything.
BUY THE BOLT TOOL.
While it's "possible" to disassemble and reassemble the bolt without a bolt tool, you'll be VERY sorry, and the wife, kids, and neighbors will hear words they haven't heard before.