I honestly thought it was just bugged and just happened at random while in Frontier, but I decided to look into it. I suppose that the jammer tower was only limited to renegade abilities, since skills can still be used
I've only played consecration titan in frontier, so this might or might not apply to other abilities, i.e. hunter tempest strike, warlock lighting surge, other abilities that require the skill to be in another state to activate.
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Just found out that this article pointed out Hunter Tempest Strike being affected by jammer, but I would like to expand this issue to other classes too.
https://help.bungie.net/hc/en-us/articles/39007140765204-Destiny-2-Known-Issues-and-Vital-Information
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Hello there, Thank you very much for reaching out to us. I'm sorry to hear that you are having issues with some abilities with the jammer tower up. As you've noticed, we have received reports of issues with Tempest Strike, and we are investigating the underlying issue further. That said, we've taken note of this additional ability and the potential of other abilities being affected. For any updates on this issue, we recommend viewing our Patch Notes as they become available, posted on the [url=https://www.bungie.net/7/en/News]News page[/url].