Weird names showing up in liked Zoom chat messages

Started to noticed weird email addresses in place of names when someone likes an post or message in Zoom chats. Anyone else experience this? Example in the pic attached. 

a way to sign into a meeting on mute

hi all,

i used to be able to sign on into a meeting already muted. then it changed to unmuted and i sometimes forget to mute myself. is there a way to change it so i'm automatically muted when i sign into a meeting?

thanks!

Email invites not arriving

I have been sending email invites for Zoom meetings for years, but suddenly they are not arriving. They show in my email sent folder, but are not received by anyone. This has happened for a couple of weeks now and has effected may invitees. HELP!

Change annual Pro account to a monthly account

Hi. I would like to email Zoom to change our annual Pro account to a monthly account. Or Phoning from UK, what number do I phone? Thanks.

Plan change 1 time

Dear Team.

I have pro  subscription plan, now need only or 1 time business plan to add more than 100 people on zoon meeting. Now I Am asking is that possible.  

Microphone - the sound is only choppy

speaker volume

while on a zoom meeting the audio is very low although the computer speakers are at 100%. I cannot find the settings page that is supposed to be available in the app.

Phishing?