am stilling having the similar issues....   

trying to set up a new blog...... longhaulbackpacker.weebly.com    when on the BLOG page, the 3 little lines on the menu icon wont take me anywhere.   works ok when on the HOME, ABOUT CONTACT pages....   have tried 3 or 4 other themes, un altered....  no joy.    works still on my heavily modified october72017 theme....  BUT wanted to try some thing else... other blog is whitemonkeytravels.weebly.com

What theme was the site using where that didn't work, @whitemonkey? Was it okay with a different theme?

i just replied  a very detailed report   and lost it.   ill reply again tomorrow

ok a re write of earlier reply.

thank u  for your time.

many things have developed since i wrote earlier.

but firstly   why i was i changing themes??

my whitemonkeytravels.weebly.com  is a mess.  so many old templates, ideas and designs all mixed up  but also..   google console is throwing up never ending errors.  its still trying to crawl pages i deleted 10 months ago.   this is annoying.  why do 301 redirects delete themselves ?

and i did switch from http to https by enabling the SLL.  and suddenly i have 400 more errors of pages not being indexed, images being blocked   404s  etc etc.   i disenabled it again

Also, even after 1 year  my traffic is Very low.   whitemonkeytravels does not use BLOG pages.   ALL are standard pages built with embed code.

so in an effort to help myself i decided to make a new blog using BLOG pages.

i took a new theme   SIGHTS & SOUNDS.

had a blank HOME page. a blank ABOUT page   and started to build 1 BLOG POST.

I copied text from whitemonkeytravels to the new blog for a future post i am doing.  

i was building it on a PC but checking how it looked on a tablet and smart phone.   the text was all over the place.  some small, some big.  line heights 

and the menu button was not working when on the BLOG page, as detailed in this forum.

i read that its not wise to copy text from one blog to another as the coding has too many conflicts.

i swapped themes to my old and very customized theme   and menu button was working again.    i swapped back to SIGHTS & SOUNDS theme..  and tried  4 others.   all the same thing.  no menu button.

i deleted my new site.  

i started again.   no copying of text.  just entering as new.  i managed to tweak the fonts and letter spacings  so things looked good on my smart phone..   BUT still the menu button was not working.

i read about deleting cookies.     THIS fixed the menu problem !!   

its a shame that as weebly is so easy to set up, good for beginners yet   still requires deleting cookies. something im sure many bloggers cant do .even i was surprised  when it was suggested i do this.

i am a long way from being a pro.   but have been tweaking the css and html for over a year  ..

but alas   . i am getting there.   

just 1 issue left to solve for tomorrow.   on the blog post.   text entered above and below the READ IT break comes up with different line-height when seen on a smart phone.   i will delete certain bits and re enter them to see if this works.

kind regards   whitemonkey  haha

@mohitsin 

Hi     i just clicked   and the menu button opened:

U replied on my old post  which i really dt recall writing....lol.

When things dt work too well   its a case of isolating the issue/ruling things out.

Here are these tips:

1. Delete cache/cookies

2. Check ur browser is up to date:   whatismybrowser.com

3. If u r using Internet Explorer...   omg    u r still living in the dark ages

4. Switch back to an un custimized theme

5. Re start devices/ modem

6. Try using another device

7. Try using another internet connection

8. Use an up to date theme