Inserting SSL certificate and private key for Secure SIP not working

[sip.bg]

Seems not possible to insert the private key in Secure SIP section is Settings | Security. The certificate file is pasted OK, but key file is pasted only partially, not the whole file.

Is this a problem with encryption depth (i.e. 256-bit or more), or is a bug in design (v.15.5) ?
This used to work with V.14.

Can wildcard certificate be used too ?

 

[GiannosC_3CX]

Hello sip.bg,

This is a known issue which has already been resolved and will be included in the upcoming service packs.