LR 12.01, REST (json) API Query

Hi,

I am recording a REST API Web application using normal HTTP protocol. After I record I can see web_custom_requests recorded in code. (I do not want to use TruClient protocol as the memory footprint is really high)

When I go to the snapshot view I can see a response received for the recording. But on replay I don't get any response back for some requests.  

Any ideas?

Sample recorded code:

1) For the below request I can see a response returned & able to capture is.

    web_reg_save_param_ex("ParamName=InstrRef", "LB=CD", "RB=", "Ordinal=1", LAST );

    web_custom_request("deposit", 
        "URL=https://{URL}/xyz/api/rest/cash/member/deposit", 
        "Method=POST", 
        "TargetFrame=", 
        "Resource=0", 
        "RecContentType=text/html", 
        "Referer=https://{PP_URL}/xyz/pages/cashDepositSa.jsp", 
        "Snapshot=t52.inf", 
        "Mode=HTML", 
        "EncType=application/json", 
        "Body={\"mnemonic\":\"{Mnemonic}\",\"transferType\":\"{TType}\",\"bic\":null,\"valueDate\":\"{TodaysDate}\",\"currency\":\"{Currency}\",\"components\":[{\"subAccount\":\"{SubAcc}\",\"amount\":\"{Amount}\"}],\"uuid\":\"{StrUUID}\"}", 
        LAST);

2) For the below I can't see any response returned.(I also tried giving empty LB & RB but nothing is returned)

   web_reg_save_param_ex("ParamName=LUD", "LB=lastUpdated\":[", "RB=]", "Ordinal=1", LAST );

    web_custom_request("CD3159400", 
        "URL=https://{URL}/xyz/api/rest/cash/cashInstruction/member/detail/CD3159400?_=1416921568326", 
        "Method=GET", 
        "TargetFrame=", 
        "Resource=1", 
        "RecContentType=application/json", 
        "Referer=https://{URL}/xyz/?le=SA", 
        "Snapshot=t45.inf", 
        "EncType=application/json", 
        LAST);