I get thes error dialog every time I open Glyphs 3 and every time I open the Plugin Manager. This has happened on a few different glyph versions as well as before I updated to Big Sur. It’s not super urgent since it’s not blocking anything, just slightly annoying 
)
Any idea what it could be?
“The data couldn’t be read because it isn’t in the correct format.”
Thanks, I’ll have a look there. I’d just just point out that I don’t have any other issues except for the pop-up window.
Think I just found the issue.
I tried to add my script repo straight into Alternate Plugin Repo like this, not long after updating to Glyphs 3, hoping that I could let Glyphs fetch my script repo from GitHub. I noticed that it didn’t work like that but didn’t think more about it.
I removed it and the pop-up is gone.
You can add a path to a packages.plist file that has points to repos. have a look at this file for references: glyphs-packages/packages.plist at glyphs3 · schriftgestalt/glyphs-packages · GitHub
I have the same issue here; this pop up always show up when I opened G3.
I have seen and tried the terminal tutorial, but it doesn’t work. So I tried the last way to report it here; this is the code I got from my terminal:
Last login: Tue Jun 8 17:27:16 on ttys000
Iqbals-MacBook-Pro:~ iqbalfirdaus$ ping -o updates.glyphsapp.com
PING updates.glyphsapp.com (172.104.142.40): 56 data bytes
64 bytes from 172.104.142.40: icmp_seq=0 ttl=41 time=279.585 ms
--- updates.glyphsapp.com ping statistics ---
1 packets transmitted, 1 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 279.585/279.585/279.585/0.000 ms
Iqbals-MacBook-Pro:~ iqbalfirdaus$ dig updates.glyphsapp.com
; <<>> DiG 9.10.6 <<>> updates.glyphsapp.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 34755
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;updates.glyphsapp.com. IN A
;; ANSWER SECTION:
updates.glyphsapp.com. 3599 IN A 172.104.142.40
;; Query time: 1 msec
;; SERVER: 192.168.100.1#53(192.168.100.1)
;; WHEN: Tue Jun 08 17:27:48 WIB 2021
;; MSG SIZE rcvd: 55
Iqbals-MacBook-Pro:~ iqbalfirdaus$ curl -I https://updates.glyphsapp.com/
Thank you.
Fastly, one of the internet’s largest content delivery systems, had some issues today affecting a wide variety of websites and services, including GitHub where many Glyphs plugins are hosted. It should work again.
Oh, okay. Thanks for your information, I’ll check again tomorrow then. 
Are you still having issues? Loading plugins from the Plugin Manager works for me again.
Nope, it’s perfectly fine now. Thanks 